Update dependency rxjs to v5.5.12

Author: renovate-bot

basic/package.json

@@ -28,7 +28,7 @@
     "core-js": "2.5.7",
     "graphql-config-parser": "1.2.1",
     "graphql-tag": "1.3.2",
-    "rxjs": "5.5.11",
+    "rxjs": "5.5.12",
     "ts-helpers": "1.1.2",
     "zone.js": "0.8.26"
   },

basic/yarn.lock

@@ -4534,9 +4534,9 @@ run-queue@^1.0.0, run-queue@^1.0.3:
   dependencies:
     aproba "^1.1.1"
 
-[email protected].11:
-  version "5.5.11"
-  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.5.11.tgz#f733027ca43e3bec6b994473be4ab98ad43ced87"
+[email protected].12:
+  version "5.5.12"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.5.12.tgz#6fa61b8a77c3d793dbaf270bee2f43f652d741cc"
   dependencies:
     symbol-observable "1.0.1"