Bump actions/create-github-app-token from 1.9.0 to 1.9.1

Bumps [actions/create-github-app-token](https://github.com/actions/create-github-app-token) from 1.9.0 to 1.9.1.
- [Release notes](https://github.com/actions/create-github-app-token/releases)
- [Commits](actions/create-github-app-token@f2acddf...78e5f2d)

---
updated-dependencies:
- dependency-name: actions/create-github-app-token
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/dependabot-automerge.yaml

@@ -16,7 +16,7 @@ jobs:
     steps:
       - name: Generate token
         id: generate_token
-        uses: actions/create-github-app-token@f2acddfb5195534d487896a656232b016a682f3c # v1.9.0
+        uses: actions/create-github-app-token@78e5f2ddc08efcb88fbbee6cfa3fed770ba550c3 # v1.9.1
         with:
           app-id: ${{ secrets.BOT_APP_ID }}
           private-key: ${{ secrets.BOT_PRIVATE_KEY }}