IBC CI test + Fix block results tests

[julienrbrt]

IBC is working (again) thanks to #101.

However, some block tests have been failing due to this.
This is not (most likely) due to a bug in the IBC integration but due to a rewrite of the block tests dependencies.

• Fix skipped tests
  • TestBlockSearch_Success (test: fix TestBlockSearch_Success and TestCommit_VerifyCometBFTLightClientCompatibility_MultipleBlocks #137)
  • TestCommit_VerifyCometBFTLightClientCompatibility_MultipleBlocks
  • TestExecuteFiresEvents (test: fix TestExecuteFiresEvents #136)
• Add IBC connection, relaying and transaction (ICS20) in CI (https://github.com/rollkit/go-execution-abci/actions/runs/15710222232/job/44266022110?pr=138)
  • Take https://github.com/rollkit/go-execution-abci/blob/main/.github/workflows/integration_test.yml as based, and call it integration_ibc_test

[julienrbrt]

For IBC integration tests, I am going to try using celestia v3 binary and have a rollkit chain connect to it.

[julienrbrt]

Completed by the two above PRs.