Create a CI action which will periodically (once per day or once per hour) regenerate warmup-tests if needed

[kamilchodola]

We have a script make_warmup.tests.py which generates a warmup tests.
This needs to be run once in a time in case new tests appeared or were changed.

For now we do that manually - seems like e could make a CI action which will do that and automatically commit changes to repo without any manual action.

It should commit only if there is a difference in generated files to avoid git history bloat.

[dmitriy-b]

@kamilchodola We have the PR, please review NethermindEth/gas-benchmarks#61

[dmitriy-b]

@kamilchodola please review NethermindEth/gas-benchmarks#72