build(deps): bump actions/create-github-app-token from 2 to 3 (#770)

Bumps [actions/create-github-app-token](https://github.com/actions/create-github-app-token) from 2 to 3.
- [Release notes](https://github.com/actions/create-github-app-token/releases)
- [Commits](actions/create-github-app-token@v2...v3)

---
updated-dependencies:
- dependency-name: actions/create-github-app-token
  dependency-version: '3'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/release-please.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ github.repository }} == 'stac-utils/stac-api-validator'
     steps:
-      - uses: actions/create-github-app-token@v2
+      - uses: actions/create-github-app-token@v3
         id: generate-token
         with:
           app-id: ${{ vars.RELEASE_BOT_CLIENT_ID }}