Use ako releaser github app

Author: josvazg

.github/workflows/release-image.yml

@@ -320,7 +320,18 @@ jobs:
           set -x
           tar czvf atlas-operator-all-in-one-${{ env.VERSION }}.tar.gz -C releases/${{ env.RELEASE_TAG }}/deploy all-in-one.yaml
 
+      - name: Generate GitHub App Token
+        id: generate_token
+        uses: actions/create-github-app-token@v2
+        with:
+          app-id: ${{ secrets.AKO_RELEASER_APP_ID }}
+          private-key: ${{ secrets.AKO_RELEASER_RSA_KEY }}
+          owner: ${{ github.repository_owner }}
+          repositories: mongodb-atlas-kubernetes
+
       - name: Tag the release assets
+        env:
+          GITHUB_TOKEN: ${{ steps.generate_token.outputs.token }}
         run: |
           git fetch --tags
           git tag -f ${{ env.RELEASE_TAG }} ${{ needs.image2commit.outputs.commit_sha }}