docs: add CLI release runbook

[jeffsee55]

Summary

• Add a dedicated RELEASE.md runbook for the stable CLI release flow in this repository.
• Document the intentional pending-check behavior on Version Packages PRs and the required admin bypass/force-merge path.
• Add a required changeset entry for this documentation-only PR.

Test plan

• Verify RELEASE.md exists at repo root and includes the release workflow, admin merge flow, and verification/rollback guidance.
• Verify .changeset/four-penguins-sit.md has empty frontmatter for a non-package docs change.
• Optional: dry-run this runbook in the next real release cycle and adjust wording if operational details change.

Made with Cursor

[changeset-bot]

🦋 Changeset detected

Latest commit: 9db2da7

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 0 packages

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[github-actions]

🧪 Unit Test Strategy

Comparing: 102f82b → 9db2da7 (view diff)

Strategy: No tests needed

✨ No packages affected - skipping tests

Results

• Unit tests: None
• E2E tests: Running in parallel in this workflow
• Type checks: None

---

This comment is automatically generated based on the affected testing strategy

[github-actions]

📦 CLI Tarball Ready

The Vercel CLI tarball for this PR is now available!

Quick Test

You can test this PR's CLI directly by running:

npx https://vercel-1i24jb02s.vercel.sh/tarballs/vercel.tgz --help

Use in vercel.json

To use this CLI version in your project builds, add to your vercel.json:

{
  "build": {
    "env": {
      "VERCEL_CLI_VERSION": "vercel@https://vercel-1i24jb02s.vercel.sh/tarballs/vercel.tgz"
    }
  }
}

Python Runtime Wheel

A vercel-runtime wheel was also built for this PR.
To use in your Python project builds, also set this environment variable:

VERCEL_RUNTIME_PYTHON="vercel-runtime @ https://vercel-1i24jb02s.vercel.sh/tarballs/vercel_runtime-0.14.0.dev1779208402+9db2da7-py3-none-any.whl"

Python Workers Wheel

A vercel-workers wheel was also built for this PR.
To use in your Python project builds, also set this environment variable:

VERCEL_WORKERS_PYTHON="vercel-workers @ https://vercel-1i24jb02s.vercel.sh/tarballs/vercel_workers-0.1.0.dev1779208402+9db2da7-py3-none-any.whl"

---

This comment is automatically generated

[vercel]

Low Risk — docs + changeset for CLI release runbook

• RELEASE.md: new runbook documenting stable CLI release flow
• four-penguins-sit.md: empty changeset for docs-only PR

^{Assessed at 384e008.}