Bump actions/create-github-app-token from 2.2.1 to 3.0.0

Bumps [actions/create-github-app-token](https://github.com/actions/create-github-app-token) from 2.2.1 to 3.0.0.
- [Release notes](https://github.com/actions/create-github-app-token/releases)
- [Commits](actions/create-github-app-token@29824e6...f8d387b)

---
updated-dependencies:
- dependency-name: actions/create-github-app-token
  dependency-version: 3.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/scala-steward.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
     - name: Generate token
       id: generate_token
-      uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2.2.1
+      uses: actions/create-github-app-token@f8d387b68d61c58ab83c6c016672934102569859 # v3.0.0
       with:
         app-id: 89698
         private-key: ${{ secrets.UNFILTERED_APP_KEY }}