fix(deps): upgrade @octokit/app (#2460)

Propogate octokit/app.js#422 to the `octokit` package to alleviate CDN caching issues

Author: wolfy1339

package-lock.json

@@ -20,7 +20,7 @@
     "test:typescript": "npx tsc --noEmit --declaration --noUnusedLocals --esModuleInterop --strict test/typescript-validate.ts"
   },
   "dependencies": {
-    "@octokit/app": "^13.1.3",
+    "@octokit/app": "^13.1.5",
     "@octokit/core": "^4.2.1",
     "@octokit/oauth-app": "^4.2.1",
     "@octokit/plugin-paginate-rest": "^6.1.0",