build: increase retries and timeout for flaky tests (#60)

* build: increase retries and timeout for flaky tests

Author: sofisl

packages/google-cloud-aiplatform/samples/package.json

@@ -10,7 +10,7 @@
     "*.js"
   ],
   "scripts": {
-    "test": "mocha --timeout 600000 test/*.js"
+    "test": "mocha --timeout 800000 test/*.js"
   },
   "dependencies": {
     "@google-cloud/aiplatform": "^1.3.0"