fix(deps): update dependency @octokit/app to v13 (#2237)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package-lock.json

@@ -20,7 +20,7 @@
     "test:typescript": "npx tsc --noEmit --declaration --noUnusedLocals --esModuleInterop --strict test/typescript-validate.ts"
   },
   "dependencies": {
-    "@octokit/app": "^12.0.4",
+    "@octokit/app": "^13.0.0",
     "@octokit/core": "^3.5.1",
     "@octokit/oauth-app": "^3.5.1",
     "@octokit/plugin-paginate-rest": "^2.18.0",