build: use GitHub app to automate releases (#539)

Author: vbarua

.github/workflows/release.yml

@@ -54,6 +54,11 @@ jobs:
     runs-on: ubuntu-latest
     needs: isthmus-native-image-mac-linux
     steps:
+      - uses: actions/create-github-app-token@v2
+        id: app-token
+        with:
+          app-id: ${{ secrets.RELEASER_ID }}
+          private-key: ${{ secrets.RELEASER_KEY }}
       - name: Checkout code
         uses: actions/checkout@v5
         with:
@@ -81,7 +86,7 @@ jobs:
       - name: Run semantic-release
         run: ./ci/release/run.sh
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ steps.app-token.outputs.token }}
           SIGNING_KEY_ID: ${{ secrets.SIGNING_KEY_ID }}
           SIGNING_PASSWORD: ${{ secrets.SIGNING_PASSWORD }}
           SIGNING_KEY: ${{ secrets.SIGNING_KEY }}