🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Author: gcf-owl-bot[bot]

.github/scripts/package.json

@@ -14,7 +14,7 @@
         "js-yaml": "^4.1.0"
     },
     "devDependencies": {
-        "@octokit/rest": "^21.0.0",
+        "@octokit/rest": "^19.0.0",
         "mocha": "^10.0.0",
         "sinon": "^18.0.0"
     }

.github/workflows/issues-no-repro.yaml

@@ -11,7 +11,7 @@ jobs:
       pull-requests: write
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v3
         with:
           node-version: 18
       - run: npm install