feat(Parse5): update to the latest version 2.2.1

fixes angular#6237

Author: vicb

modules/@angular/compiler-cli/package.json

@@ -11,7 +11,7 @@
   "dependencies": {
     "@angular/tsc-wrapped": "^0.3.0",
     "reflect-metadata": "^0.1.2",
-    "parse5": "1.3.2",
+    "parse5": "^2.2.1",
     "minimist": "^1.2.0"
   },
   "peerDependencies": {

modules/@angular/platform-server/package.json

@@ -14,7 +14,7 @@
     "@angular/platform-browser": "0.0.0-PLACEHOLDER"
   },
   "dependencies": {
-    "parse5": "1.3.2"
+    "parse5": "^2.2.1"
   },
   "repository": {
     "type": "git",