fix(ci): migrate from buildjet to warpbuild

[hanabi1224]

Summary of changes

Changes introduced in this pull request:

Reference issue to close (if applicable)

Closes

Other information and links

Change checklist

• I have performed a self-review of my own code,
• I have made corresponding changes to the documentation. All new code adheres to the team's documentation standards,
• I have added tests that prove my fix is effective or that my feature works (if possible),
• I have made sure the CHANGELOG is up-to-date. All user-facing changes should be reflected in this document.

Outside contributions

• I have read and agree to the CONTRIBUTING document.
• I have read and agree to the AI Policy document. I understand that failure to comply with the guidelines will lead to rejection of the pull request.

Summary by CodeRabbit

• Chores
  • Updated CI workflow runner environments for coverage, RPC parity, snapshot parity, and internal RPC checks to a new execution platform to standardize and improve build/test infrastructure consistency and performance.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 39e973b6-cc32-4bd2-af29-dca125145e7f

📥 Commits

Reviewing files that changed from the base of the PR and between ed9a793 and 681c33d.

📒 Files selected for processing (1)

• .github/workflows/forest.yml

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Walkthrough

Swapped GitHub Actions runner labels across CI workflows: coverage.yml now uses warp-ubuntu-2204-x64-4x; rpc-parity.yml, rpc-parity-report.yml, snapshot-parity.yml, and .github/workflows/forest.yml now use warp-ubuntu-2204-x64-8x. No other workflow steps or logic changed.

Changes

Cohort / File(s)	Summary
Coverage workflow ​.github/workflows/coverage.yml	Changed jobs.codecov.runs-on from buildjet-4vcpu-ubuntu-2204 to warp-ubuntu-2204-x64-4x. No other edits.
RPC parity workflows ​.github/workflows/rpc-parity.yml, ​.github/workflows/rpc-parity-report.yml	Changed runs-on from buildjet-8vcpu-ubuntu-2204 to warp-ubuntu-2204-x64-8x. Steps and logic unchanged.
Snapshot & forest workflows ​.github/workflows/snapshot-parity.yml, ​.github/workflows/forest.yml	Changed runs-on from buildjet-8vcpu-ubuntu-2204 to warp-ubuntu-2204-x64-8x. No other changes.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• chore: use buildjet ubuntu in calibnet rpc check ci #5878 — changed runner labels in RPC-related workflows (directly related).
• fix: run codecov on buildjet #6407 — modified runner label in coverage.yml (directly related).
• Revert to ubuntu-24.04 from buildjet in rpc parity workflow #5902 — updated rpc-parity workflow runner label (directly related).

Suggested labels

github_actions

Suggested reviewers

• akaladarshi
• LesnyRumcajs
• sudo-shashank

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and specifically summarizes the main change: migrating CI workflows from buildjet runners to warpbuild runners across multiple workflow files.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch hm/warpbuild

✨ Simplify code

• Create PR with simplified code
• Commit simplified code in branch hm/warpbuild

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_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 63.79%. Comparing base (73f9afb) to head (c1db77c).
⚠️ Report is 2 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

see 9 files with indirect coverage changes

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