chore(deps): update dependency puppeteer to v15

Author: renovate-bot

appengine/websockets/package.json

@@ -22,6 +22,6 @@
   },
   "devDependencies": {
     "mocha": "^9.0.0",
-    "puppeteer": "^13.0.0"
+    "puppeteer": "^15.0.0"
   }
 }

run/websockets/package.json

@@ -18,6 +18,6 @@
   "devDependencies": {
     "google-auth-library": "^8.0.2",
     "got": "^11.8.3",
-    "puppeteer": "^14.1.0"
+    "puppeteer": "^15.0.0"
   }
 }