Publish to GitHub packages as well

Author: harmony7

.github/workflows/ci-release.yaml

@@ -51,3 +51,11 @@ jobs:
         run: |
           echo "Publishing to npmjs.org using dist-tag: $DIST_TAG"
           npm publish --access=public --tag "$DIST_TAG"
+
+      - name: Publish to pkg.github.com
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          npm config set "@fastly:registry" "https://npm.pkg.github.com/"
+          echo "Publishing to pkg.github.com using dist-tag: $DIST_TAG"
+          npm publish --access=public --tag "$DIST_TAG"