Update dependency protractor to v7

Author: renovate[bot]

angular-client/package.json

@@ -63,7 +63,7 @@
     "karma-jasmine": "~2.0.0",
     "karma-jasmine-html-reporter": "^1.0.0",
     "nodemon": "^1.18.6",
-    "protractor": "~5.4.0",
+    "protractor": "~7.0.0",
     "ts-node": "~7.0.0",
     "tslint": "~5.11.0",
     "typescript": "~3.2.0"