chore(release): add yarn release:refs helper to list release commits

Since workflow_dispatch dropdowns can't be populated from git history, this
prints the recent `ci: publish packages` version commits so a maintainer can
copy a real release ref to nominate for the release workflow's `ref` input.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: rhyslbw

package.json

@@ -36,6 +36,7 @@
     "version:stable": "lerna version --conventional-graduate --allow-branch master --create-release github -m \"ci: publish packages [skip actions]\" --sign-git-commit",
     "publish:rc": "lerna publish from-package --dist-tag rc --yes",
     "publish:stable": "lerna publish from-package --yes",
+    "release:refs": "git log --grep='ci: publish packages' --format='%h  %ci  %s' -n 20",
     "test": "yarn workspaces foreach -v run test",
     "test:build:verify": "yarn workspaces foreach -v run test:build:verify",
     "test:e2e": "yarn workspaces foreach -v run test:e2e",