feat: upgrade @octokit/auth-app from 4.0.13 to 7.1.0

Snyk has created this PR to upgrade @octokit/auth-app from 4.0.13 to 7.1.0.

See this package in npm:
@octokit/auth-app

See this project in Snyk:
https://app.snyk.io/org/cachiman/project/24b3d897-b7b7-44c4-8474-7e8fe6036273?utm_source=github-cloud-app&utm_medium=referral&page=upgrade-pr

packages/gcf-utils/package.json

@@ -24,7 +24,7 @@
     "@google-cloud/secret-manager": "^4.1.2",
     "@google-cloud/storage": "^6.4.1",
     "@google-cloud/tasks": "^3.0.2",
-    "@octokit/auth-app": "^4.0.5",
+    "@octokit/auth-app": "^7.1.0",
     "@octokit/plugin-enterprise-compatibility": "^2.0.3",
     "@octokit/rest": "^19.0.4",
     "@octokit/types": "^9.0.0",