ci(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/integration-testing.yml

@@ -16,7 +16,7 @@ jobs:
       approval-env: ${{ steps.collab-check.outputs.result }}
     steps:
       - name: Collaborator Check
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         id: collab-check
         with:
           result-encoding: string

.github/workflows/pr-automerge.yml

@@ -22,7 +22,7 @@ jobs:
     steps:
       - name: Check CI status
         id: ci-status
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const { data: checkRuns } = await github.rest.checks.listForRef({
@@ -51,7 +51,7 @@ jobs:
 
       - name: Auto-merge PR
         if: steps.ci-status.outputs.result == 'true'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             await github.rest.pulls.merge({