Chore(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] <support@github.com>

Author: dependabot[bot]

.github/workflows/github2gerrit.yaml

@@ -527,7 +527,7 @@ jobs:
         if: |
           hashFiles('commit-sha.txt') != '' ||
           (! startsWith(env.GERRIT_CR_URL_CID, ''))
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           result-encoding: string
           retries: 3

action.yaml

@@ -379,7 +379,7 @@ runs:
       if: |
         hashFiles('commit-sha.txt') != '' ||
         (! startsWith(env.GERRIT_CHANGE_REQUEST_URL, ''))
-      uses: actions/github-script@v7
+      uses: actions/github-script@v8
       with:
         result-encoding: string
         retries: 3