Include gruntwork credentials and remove nano install step

Author: yorinasub17

.circleci/config.yml

@@ -46,6 +46,7 @@ workflows:
   checks:
     jobs:
       - shellcheck
-      - integration_test
+      - integration_test:
+          context: Gruntwork Admin
       - bats_ubuntu1604
       - bats_ubuntu1804

examples/dynamic-ubuntu-wait/packer-build.json

@@ -37,11 +37,5 @@
     "inline": [
       "sudo DEBIAN_FRONTEND=noninteractive apt-get install -y rolldice"
     ]
-  },{
-    "type": "shell",
-    "inline": [
-      "sudo apt-get -y update",
-      "sudo apt-get install -y nano"
-    ]
   }]
 }