Bump actions/github-script from 7 to 8 (#1721)

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>

Author: dependabot[bot]

.github/workflows/try-runtime-gate.yml

@@ -18,7 +18,7 @@ jobs:
     steps:
       - name: Verify requester is trusted
         id: authz
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const assoc = context.payload.comment.author_association;
@@ -27,7 +27,7 @@ jobs:
 
       - name: Reject if untrusted
         if: fromJSON(steps.authz.outputs.result).ok != true
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             await github.issues.createComment({
@@ -54,7 +54,7 @@ jobs:
           echo "labels=$(cat labels.json)" >> "$GITHUB_OUTPUT"
 
       - name: Add labels to PR
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const ls = JSON.parse(process.env.LABELS);
@@ -68,7 +68,7 @@ jobs:
           LABELS: ${{ steps.labels.outputs.labels }}
 
       - name: Acknowledge
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             await github.issues.createComment({

.github/workflows/try-runtime-pr.yml

@@ -84,7 +84,7 @@ jobs:
 
       - name: Post comment to PR
         if: always()
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const fs = require('fs');