fix(@schematics/angular): address vulnerability in protractor

Author: clydin

packages/schematics/angular/workspace/files/package.json.template

@@ -38,7 +38,7 @@
     "karma-coverage-istanbul-reporter": "~2.0.1",
     "karma-jasmine": "~2.0.1",
     "karma-jasmine-html-reporter": "^1.4.0",
-    "protractor": "~5.4.0",<% } %>
+    "protractor": "~7.0.0",<% } %>
     "ts-node": "~7.0.0",
     "tslint": "~5.15.0",
     "typescript": "<%= latestVersions.TypeScript %>"