feat: upgrade @octokit/auth-app from 4.0.8 to 7.1.0

Snyk has created this PR to upgrade @octokit/auth-app from 4.0.8 to 7.1.0.

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

See this project in Snyk:
https://app.snyk.io/org/cachiman/project/70b0c924-5766-4f16-897a-065d03b31bf1?utm_source=github&utm_medium=referral&page=upgrade-pr

packages/owlbot-bootstrapper/common-container/package.json

@@ -29,7 +29,7 @@
     "@google-cloud/cloudbuild": "^3.1.0",
     "@google-cloud/secret-manager": "^4.1.2",
     "@google-cloud/storage": "^6.5.2",
-    "@octokit/auth-app": "^4.0.5",
+    "@octokit/auth-app": "^7.1.0",
     "@octokit/rest": "^19.0.4",
     "@types/yargs": "^17.0.12",
     "gaxios": "^5.0.1",