🕓 Changelog

This PR adds a Bash script, generate_gas_snapshot.sh, that includes version and configuration information into the gas snapshot files to improve traceability. Specifically, it prepends the vyper commit version, the forge commit version, and vyper configuration settings (e.g. optimisation mode) to the snapshot files. The script also supports generating snapshots for the default-venom profile using the --venom flag. Eventually, we pin the specific vyper commit d8f4032355773cd5e57e8902bd50808490de39b5 as the subsequent commit fdc05d6029816ef57294e98753d9a3d60c761ab8 (PR #4039) currently breaks our venom-based tests (refer to issue #4288 for details).

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