fix(ci): update GitHub action runtimes

.github/workflows/sync-changelog.yml

@@ -11,9 +11,9 @@ jobs:
     if: github.event_name != 'workflow_run' || github.event.workflow_run.conclusion == 'success'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           node-version: 22