Add a ci check for gas consumption

Gas consumption as displayed with the `--verbose` flag is routinely used to detect performance regressions when run on our test suite.
We should add a CI step to do this check automatically and warn us of those possible regressions

Start by locating the repository's CI configuration and the test-suite command that displays gas consumption with the --verbose flag. Determine how the check should warn about possible regressions and what baseline or comparison it needs. Done means the CI job runs this check automatically and reports gas-consumption regressions clearly.

Written by the indexing model from the issue text.