chore(deps): update actions/github-script action to v8

Author: renovate[bot]

.github/workflows/auto-merge.yml

@@ -24,7 +24,7 @@ jobs:
           node-version: '22'
 
       - name: Wait for all checks to pass
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const pr = context.payload.pull_request;
@@ -38,7 +38,7 @@ jobs:
             }
 
       - name: Merge the pull request
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             await github.pulls.merge({