chore(dev-deps): update dependency karma to v6.3.2

Author: renovate-bot

package-lock.json

@@ -70,7 +70,7 @@
     "google-closure-compiler": "20210302.0.0",
     "google-closure-compiler-js": "20200719.0.0",
     "jasmine-core": "3.7.1",
-    "karma": "6.2.0",
+    "karma": "6.3.2",
     "karma-chrome-launcher": "3.1.0",
     "karma-firefox-launcher": "2.1.0",
     "karma-jasmine": "4.0.1",