feat: upgrade @octokit/types from 9.0.0 to 12.4.0

Snyk has created this PR to upgrade @octokit/types from 9.0.0 to 12.4.0.

See this package in npm:
https://www.npmjs.com/package/@octokit/types

See this project in Snyk:
https://app.snyk.io/org/cachiman/project/3cfbbc14-7454-4ffa-b35b-8b117d876c82?utm_source=github&utm_medium=referral&page=upgrade-pr

packages/gcf-utils/package.json

@@ -27,7 +27,7 @@
     "@octokit/auth-app": "^4.0.5",
     "@octokit/plugin-enterprise-compatibility": "^2.0.3",
     "@octokit/rest": "^19.0.4",
-    "@octokit/types": "^9.0.0",
+    "@octokit/types": "^12.4.0",
     "@probot/octokit-plugin-config": "^1.1.6",
     "@types/bunyan": "^1.8.8",
     "@types/dotenv": "^6.1.1",