chore: update assumevalid for v18.2.0 (#5128)

<!--
*** Please remove the following help text before submitting: ***

Provide a general summary of your changes in the Title above

Pull requests without a rationale and clear improvement may be closed
immediately.

Please provide clear motivation for your patch and explain how it
improves
Dash Core user experience or Dash Core developer experience
significantly:

* Any test improvements or new tests that improve coverage are always
welcome.
* All other changes should have accompanying unit tests (see
`src/test/`) or
functional tests (see `test/`). Contributors should note which tests
cover
modified code. If no tests exist for a region of modified code, new
tests
  should accompany the change.
* Bug fixes are most welcome when they come with steps to reproduce or
an
explanation of the potential issue as well as reasoning for the way the
bug
  was fixed.
* Features are welcome, but might be rejected due to design or scope
issues.
If a feature is based on a lot of dependencies, contributors should
first
  consider building the system outside of Dash Core, if possible.
-->

## Issue being fixed or feature implemented
<!--- Why is this change required? What problem does it solve? -->
<!--- If it fixes an open issue, please link to the issue here. -->


## What was done?
<!--- Describe your changes in detail -->


## How Has This Been Tested?
<!--- Please describe in detail how you tested your changes. -->
<!--- Include details of your testing environment, and the tests you ran
to -->
<!--- see how your change affects other areas of the code, etc. -->
Hasn't been

## Breaking Changes
<!--- Please describe any breaking changes your code introduces -->


## Checklist:
<!--- Go over all the following points, and put an `x` in all the boxes
that apply. -->
- [x] I have performed a self-review of my own code
- [x] I have commented my code, particularly in hard-to-understand areas
- [x] I have added or updated relevant unit/integration/functional/e2e
tests
- [x] I have made corresponding changes to the documentation

**For repository code-owners and collaborators only**
- [x] I have assigned this pull request to a milestone

src/chainparams.cpp

@@ -259,10 +259,10 @@ public:
         consensus.vDeployments[Consensus::DEPLOYMENT_V19].nFalloffCoeff = 5;            // this corresponds to 10 periods
 
         // The best chain should have at least this much work.
-        consensus.nMinimumChainWork = uint256S("0x0000000000000000000000000000000000000000000079c96bdb79315818b358"); // 1756000
+        consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000000007d31aeabf4a72ce1fbaa"); // 1796500
 
         // By default assume that the signatures in ancestors of this block are valid.
-        consensus.defaultAssumeValid = uint256S("0x000000000000000fd8af332029688d4ccb227f481efa6aff1d662358cc4f76c1"); // 1756000
+        consensus.defaultAssumeValid = uint256S("0x000000000000001d531f36005159f19351bd49ca676398a561e55dcccb84eacd"); // 1796500
 
         /**
          * The message start string is designed to be unlikely to occur in normal data.
@@ -364,14 +364,16 @@ public:
                 {1167570, uint256S("0x000000000000000fb7b1e9b81700283dff0f7d87cf458e5edfdae00c669de661")},
                 {1364585, uint256S("0x00000000000000022f355c52417fca9b73306958f7c0832b3a7bce006ca369ef")},
                 {1450000, uint256S("0x00000000000000105cfae44a995332d8ec256850ea33a1f7b700474e3dad82bc")},
+                {1796500, uint256S("0x000000000000001d531f36005159f19351bd49ca676398a561e55dcccb84eacd")},
             }
         };
 
+        // getchaintxstats 17280 000000000000001d531f36005159f19351bd49ca676398a561e55dcccb84eacd
         chainTxData = ChainTxData{
-            1660074878, // * UNIX timestamp of last known number of transactions (Block 1718597)
-            43702293,   // * total number of transactions between genesis and that timestamp
-                        //   (the tx=... number in the ChainStateFlushed debug.log lines)
-            0.175       // * estimated number of transactions per second after that timestamp
+                1672362622, // * UNIX timestamp of last known number of transactions (Block 1718597)
+                45744554,   // * total number of transactions between genesis and that timestamp
+                            //   (the tx=... number in the ChainStateFlushed debug.log lines)
+                0.1522379324797504       // * estimated number of transactions per second after that timestamp
         };
     }
 };
@@ -493,10 +495,10 @@ public:
         consensus.vDeployments[Consensus::DEPLOYMENT_V19].nFalloffCoeff = 5;            // this corresponds to 10 periods
 
         // The best chain should have at least this much work.
-        consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000000002d68be93ade9d82"); // 794950
+        consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000000002d68c04d48c0c9c"); // 808000
 
         // By default assume that the signatures in ancestors of this block are valid.
-        consensus.defaultAssumeValid = uint256S("0x000001860e4c7248a9c5cc3bc7106041750560dc5cd9b3a2641b49494bcff5f2"); // 794950
+        consensus.defaultAssumeValid = uint256S("0x00000104cb60a2b5e00a8a4259582756e5bf0dca201c0993c63f0e54971ea91a"); // 808000
 
         pchMessageStart[0] = 0xce;
         pchMessageStart[1] = 0xe2;
@@ -572,14 +574,16 @@ public:
                 {395750, uint256S("0x000008b78b6aef3fd05ab78db8b76c02163e885305545144420cb08704dce538")},
                 {470000, uint256S("0x0000009303aeadf8cf3812f5c869691dbd4cb118ad20e9bf553be434bafe6a52")},
                 {794950, uint256S("0x000001860e4c7248a9c5cc3bc7106041750560dc5cd9b3a2641b49494bcff5f2")},
+                {808000, uint256S("0x00000104cb60a2b5e00a8a4259582756e5bf0dca201c0993c63f0e54971ea91a")},
             }
         };
 
+        // getchaintxstats 17280 00000104cb60a2b5e00a8a4259582756e5bf0dca201c0993c63f0e54971ea91a
         chainTxData = ChainTxData{
-            1659215338, // * UNIX timestamp of last known number of transactions (Block 771537)
-            5579961,    // * total number of transactions between genesis and that timestamp
-                        //   (the tx=... number in the ChainStateFlushed debug.log lines)
-            0.018       // * estimated number of transactions per second after that timestamp
+                1672374042, // * UNIX timestamp of last known number of transactions (Block 771537)
+                5722721,    // * total number of transactions between genesis and that timestamp
+                            //   (the tx=... number in the ChainStateFlushed debug.log lines)
+                0.003149555626489206       // * estimated number of transactions per second after that timestamp
         };
     }
 };