test: switch to latest tester (#72)

* test: switch to latest tester

* chore: switch to 0.6

Author: ddebrunner

tests/package-lock.json

@@ -9,7 +9,7 @@
     "chain": "^0.2.1",
     "dotenv": "^16.0.3",
     "mocha": "^10.0.0",
-    "gqltest": "stepzen-dev/gqltest#v0.4"
+    "gqltest": "stepzen-dev/gqltest#0.6"
   },
   "keywords": [],
   "author": ""