11b7269d83a56f919f9dddb7f7c72a96d428627f script: Enhance validations in utxo_snapshot.sh (pablomartin4btc)
Pull request description:
This PR resolves#27841 and some more:
- Ensure that the snapshot height is higher than the pruned block height when the node is pruned (Suggested by @Sjors [here](https://github.com/bitcoin/bitcoin/pull/28553#issuecomment-1804941396)).
- Validate the correctness of the file path and check if the file already exists (@hazeycode's [#27845](https://github.com/bitcoin/bitcoin/pull/27845)).
- Make network activity disablement optional for the user (Suggested by @Sjors [here](https://github.com/bitcoin/bitcoin/pull/16899#discussion_r342735815) and [here](https://github.com/bitcoin/bitcoin/pull/16899#issuecomment-536520911)).
- Ensure the `reconsiderblock` command is triggered on exit (@hazeycode's same PR as above), even in the case of user interruption (Ctrl-C).
In order to perform some testing please follow the instructions in the description of previous @hazeycode's PR #27845.
ACKs for top commit:
Sjors:
tACK 11b7269d83a56f919f9dddb7f7c72a96d428627f
ryanofsky:
Code review ACK 11b7269d83a56f919f9dddb7f7c72a96d428627f
Tree-SHA512: 2b699894c6f732ad5104f5a2bcf5dc86ed31edcc9d664690cab55b94a8ab00e2ca5bde901ee1d63acddca7ea80ad1734d8cfe78f9c02f8470f264fe93a2af759
