Merge pull request nestjs#1750 from nestjs/renovate/supertest-4.x

Update dependency supertest to v4

Author: kamilmysliwiec

integration/hello-world/package-lock.json

@@ -21,7 +21,7 @@
   },
   "devDependencies": {
     "@types/node": "7.10.5",
-    "supertest": "3.4.2",
+    "supertest": "4.0.2",
     "ts-node": "6.2.0"
   }
 }

integration/hello-world/package.json

@@ -17,7 +17,7 @@
   },
   "devDependencies": {
     "@types/node": "7.10.5",
-    "supertest": "3.4.2",
+    "supertest": "4.0.2",
     "ts-node": "6.2.0"
   }
 }

integration/hooks/package-lock.json

@@ -20,7 +20,7 @@
   },
   "devDependencies": {
     "@types/node": "7.10.5",
-    "supertest": "3.4.2",
+    "supertest": "4.0.2",
     "ts-node": "6.2.0"
   }
 }

integration/hooks/package.json

@@ -21,7 +21,7 @@
   },
   "devDependencies": {
     "@types/node": "7.10.5",
-    "supertest": "3.4.2",
+    "supertest": "4.0.2",
     "ts-node": "6.2.0"
   }
 }

integration/injector/package-lock.json

@@ -21,7 +21,7 @@
   },
   "devDependencies": {
     "@types/node": "7.10.5",
-    "supertest": "3.4.2",
+    "supertest": "4.0.2",
     "ts-node": "6.2.0"
   }
 }