fix(package): update @angular/cdk to version 6.0.1

Author: greenkeeper[bot]

package.json

@@ -38,7 +38,7 @@
   },
   "dependencies": {
     "@angular/animations": "^5.2.9",
-    "@angular/cdk": "^5.2.4",
+    "@angular/cdk": "^6.0.1",
     "@angular/common": "^5.2.9",
     "@angular/core": "^5.2.9",
     "@angular/material": "^5.2.4"