Bump karma-browserify from 6.1.0 to 7.0.0

Bumps [karma-browserify](https://github.com/nikku/karma-browserify) from 6.1.0 to 7.0.0.
- [Release notes](https://github.com/nikku/karma-browserify/releases)
- [Commits](nikku/karma-browserify@v6.1.0...v7.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -69,7 +69,7 @@
     "jquery": "^3.2.1",
     "js-polyfills": "^0.1.16",
     "karma": "^4.0.0",
-    "karma-browserify": "^6.0.0",
+    "karma-browserify": "^7.0.0",
     "karma-chai": "^0.1.0",
     "karma-chrome-launcher": "^3.1.0",
     "karma-coverage-istanbul-reporter": "^2.0.4",

yarn.lock

@@ -5074,10 +5074,10 @@ just-extend@^4.0.2:
   resolved "https://registry.yarnpkg.com/just-extend/-/just-extend-4.0.2.tgz#f3f47f7dfca0f989c55410a7ebc8854b07108afc"
   integrity sha512-FrLwOgm+iXrPV+5zDU6Jqu4gCRXbWEQg2O3SKONsWE4w7AXFRkryS53bpWdaL9cNol+AmR3AEYz6kn+o0fCPnw==
 
-karma-browserify@^6.0.0:
-  version "6.1.0"
-  resolved "https://registry.yarnpkg.com/karma-browserify/-/karma-browserify-6.1.0.tgz#ac23be7172d1ae25c5f5f34b09d3c36cd99abb3e"
-  integrity sha512-FWOuATeil6dbm2nwWIbSFG0Ad8w3PcuBNs05zcqnMiuXEdwos/o6B26HF+NcYwTt3o7LTOGWiuXK9cuuhoPeaw==
+karma-browserify@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/karma-browserify/-/karma-browserify-7.0.0.tgz#60f443f991ecfbbfb5737a9fd76e73b8b6eb9a57"
+  integrity sha512-SLgh1dmF2eZEj3glrmTD2CMJRGZwEiKA6k2hBr2+2JDC4JMU1dlsvBKpV66Lvi/tbj3H9qA+Vl/FdIcfPRrJpA==
   dependencies:
     convert-source-map "^1.1.3"
     hat "^0.0.3"