chore(release): provide permissions for prod provenance (#34)

prior to this commit, we'd get an error trying to publish to npm
using the `latest` tag with the following error:
```
npm notice Publishing to https://registry.npmjs.org/ with tag latest and default access
npm ERR! code EUSAGE
npm ERR! Provenance generation in GitHub Actions requires “write” access to the “id-token” permission
npm ERR! A complete log of this run can be found in: /home/runner/.npm/_logs/2024-03-25T20_09_08_269Z-debug-0.log
```

this ought to fix the issue, using the same permissions that we
use in stencil core today

Author: rwaskiewicz

.github/workflows/release-production.yml

@@ -21,6 +21,9 @@ jobs:
     name: Publish Stencil Playwright (Production)
     needs: [ build_stencil_playwright ]
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      id-token: write
     steps:
       # Log the input from GitHub Actions for easy traceability
       - name: Log GitHub Workflow UI Input