npm angular dependency updates

client/angular/package.json

@@ -49,7 +49,7 @@
         "jshint": "^2.13.4",
         "jshint-loader": "0.8.4",
         "json-loader": "0.5.7",
-        "karma": "^4.4.1",
+        "karma": "^6.3.16",
         "karma-chrome-launcher": "2.2.0",
         "karma-jasmine": "1.1.2",
         "karma-jasmine-html-reporter": "1.3.1",
@@ -59,7 +59,7 @@
         "karma-webpack": "3.0.5",
         "moment": "2.21.0",
         "ngtemplate-loader": "2.0.1",
-        "node-sass": "^6.0.1",
+        "node-sass": "^7.0.0",
         "phantomjs": "2.1.7",
         "phantomjs-prebuilt": "2.1.16",
         "postcss-loader": "2.1.1",