chore: use GitHub app token (#175)

Author: erezrokah

.github/workflows/release-please.yml

@@ -7,8 +7,14 @@ jobs:
   release-please:
     runs-on: ubuntu-latest
     steps:
+      - uses: navikt/github-app-token-generator@2d70c12368d1958155af4d283f9f21c9a2a8cb98
+        id: get-token
+        with:
+          private-key: ${{ secrets.PRIVATE_KEY }}
+          app-id: ${{ secrets.APP_ID }}
+
       - uses: GoogleCloudPlatform/release-please-action@v2
         with:
-          token: ${{ secrets.GITHUB_TOKEN }}
+          token: ${{ steps.get-token.outputs.token }}
           release-type: node
           package-name: '@netlify/plugin-lighthouse'