Update dependency karma to ~5.2.0

Author: renovate[bot]

package.json

@@ -34,7 +34,7 @@
     "codelyzer": "^6.0.0",
     "jasmine-core": "~3.6.0",
     "jasmine-spec-reporter": "~5.0.0",
-    "karma": "~5.1.0",
+    "karma": "~5.2.0",
     "karma-chrome-launcher": "~3.1.0",
     "karma-coverage": "~2.0.3",
     "karma-jasmine": "~4.0.0",