Bump actions/github-script from 7 to 8 (#1988)

Bumps [actions/github-script](https://github.com/actions/github-script) from 7 to 8.
- [Release notes](https://github.com/actions/github-script/releases)
- [Commits](actions/github-script@v7...v8)

---
updated-dependencies:
- dependency-name: actions/github-script
  dependency-version: '8'
  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>
Co-authored-by: Ingo Fischer <github@fischer-ka.de>

Author: dependabot[bot]

.github/workflows/create-release.yml

@@ -52,7 +52,7 @@ jobs:
 
             - name: Determine the version bump
               id: version
-              uses: actions/github-script@v7
+              uses: actions/github-script@v8
               with:
                   result-encoding: string
                   script: |

.github/workflows/test-and-release.yml

@@ -121,7 +121,7 @@ jobs:
             - name: Determine version
               if: steps.automerge.outputs.mergeResult == 'merged'
               id: version
-              uses: actions/github-script@v7
+              uses: actions/github-script@v8
               with:
                   result-encoding: string
                   script: |