build(deps): bump @angular/core from 6.1.3 to 6.1.7

Bumps [@angular/core](https://github.com/angular/angular) from 6.1.3 to 6.1.7.
- [Release notes](https://github.com/angular/angular/releases)
- [Changelog](https://github.com/angular/angular/blob/master/CHANGELOG.md)
- [Commits](angular/angular@6.1.3...6.1.7)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Author: dependabot-support

package.json

@@ -16,7 +16,7 @@
   "dependencies": {
     "@angular/common": "^6.1.6",
     "@angular/compiler": "^6.1.6",
-    "@angular/core": "^6.1.3",
+    "@angular/core": "^6.1.7",
     "@angular/forms": "^6.1.6",
     "@angular/http": "^6.1.7",
     "@angular/platform-browser": "^6.1.7",

yarn.lock

@@ -143,9 +143,9 @@
   dependencies:
     tslib "^1.9.0"
 
-"@angular/core@^6.1.3":
-  version "6.1.3"
-  resolved "https://registry.yarnpkg.com/@angular/core/-/core-6.1.3.tgz#6561ba0b40a12758e5237fc05186b56d6d0bdbc9"
+"@angular/core@^6.1.7":
+  version "6.1.7"
+  resolved "https://registry.yarnpkg.com/@angular/core/-/core-6.1.7.tgz#036088227cbff7d3fc7af0c43c5af9db46149f16"
   dependencies:
     tslib "^1.9.0"