Create a release event datadog tracking workflow

[jonrohan]

Part of https://github.com/github/primer/issues/3181

This Pull creates a release_tracking workflow that will track when releases are created and published. These will be tracked on the Deployments dashboard https://app.datadoghq.com/dashboard/ckz-5jr-6f4/primer-deployments

[changeset-bot[bot]]

⚠️ No Changeset found

Latest commit: e63ca473af8348c10e8e2665eefd6226faff6a2a

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[github-actions[bot]]

size-limit report 📦

Path	Size
packages/react/dist/browser.esm.js	88.37 KB (0%)
packages/react/dist/browser.umd.js	88.68 KB (0%)