build(deps): bump actions/github-script from 7 to 8

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] <[email protected]>

Author: dependabot[bot]

.github/workflows/preview-documentation.yml

@@ -26,7 +26,7 @@ jobs:
           DOCUMENTER_KEY: ${{ secrets.DOCUMENTER_KEY }} # If authenticating with SSH deploy key
         run: julia --project=docs/ docs/make.jl push_preview=true
 
-      - uses: actions/github-script@v7
+      - uses: actions/github-script@v8
         if: steps.deploy.outcome == 'success'
         with:
           github-token: ${{secrets.GITHUB_TOKEN}}