[Session] fix: session mismatch due to off-by-one block height

[red-0ne]

Summary

Human Summary

Fix off-by-one block height causing session mismatch errors during relaying.

AI Summary

reviewpad:summary

Issue

• [Sessions] Block hash store does not update correctly #366

Type of change

Select one or more:

• New feature, functionality or library
• Bug fix
• Code health or cleanup
• Documentation
• Other (specify)

Testing

• Run all unit tests: make go_develop_and_test
• Run E2E tests locally: make test_e2e
• Run E2E tests on DevNet: Add the devnet-test-e2e label to the PR. This is VERY expensive, only do it after all the reviews are complete.

Sanity Checklist

• I have tested my changes using the available tooling
• I have performed a self-review of my own code
• I have commented my code, updated documentation and left TODOs throughout the codebase

[github-actions]

The CI will now also run the e2e tests on devnet, which increases the time it takes to complete all CI checks. If you just created a pull request, you might need to push another commit to produce a container image DevNet can utilize to spin up infrastructure. You can use make trigger_ci to push an empty commit.