[pallet-revive] revm tests scaffolding

[xermicus]

This PR implements the pallet-revive EVM integration tests.

• Refactors VM specific tests into dedicated modules.
• Adds the shared VM tests.
• Adds the solidity-fixtures crate
  • Helper script (simply bash fixturs-solidity/build_fixtures.sh) to regenarte.
  • Fixtures are checked in for now and to be update manually. Is a KISS solution: Trivial, doesn't annoy other devs, doesn't fail the CI, works regardless whether the crate is used within the workspace or not.

[pgherveou]

Fixtures are checked in for now and to be update manually. I think it is not even a bad solution: Trivial, doesn't annoy other devs, doesn't fail the CI, works regardless whether the crate is used within the workspace or not.

I am fine with that
alternatively we have solc / resolc in CI now
https://github.com/paritytech/devops/issues/4193#issuecomment-3103595783

since you moved fixture in it's own repo, having a build.rs that build when they are touched, wouldn't be the end of the world.

[xermicus]

To have them built when they are touched they should live in the target directory right?

[paritytech-workflow-stopper]

All GitHub workflows were cancelled due to failure one of the required jobs.
Failed workflow url: https://github.com/paritytech/polkadot-sdk/actions/runs/16491913902
Failed job name: fmt