Bump actions/github-script from 2 to 6 (#2730)

Bumps [actions/github-script](https://github.com/actions/github-script) from 2 to 6.
- [Release notes](https://github.com/actions/github-script/releases)
- [Commits](actions/github-script@v2...v6)

---
updated-dependencies:
- dependency-name: actions/github-script
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
Co-authored-by: Pepe Iborra <[email protected]>
Co-authored-by: Michael Peyton Jones <[email protected]>

Author: 4 people

.github/workflows/build.yml

@@ -117,7 +117,7 @@ jobs:
       # from https://github.com/actions/upload-release-asset/issues/47#issuecomment-659071145
       - name: Upload binaries tarball to the release
         if: ${{ github.event.release.upload_url != '' }}
-        uses: actions/github-script@v2
+        uses: actions/github-script@v6
         with:
           github-token: ${{secrets.GITHUB_TOKEN}}
           script: |