chore(test): fix testing on linux (#468)

Some systems require the CHROME_BIN env
variable to be set for karma to hook
into the chrome binary for testing.
I noticed this while setting up
karma-webpack on my linux desktop.

Fixes N/A

package.json

@@ -62,7 +62,7 @@
     "husky": "^0.14.3",
     "istanbul": "^0.4.5",
     "jest": "^23.5.0",
-    "karma": "^6.0.0",
+    "karma": "^6.0.3",
     "karma-chai": "^0.1.0",
     "karma-chrome-launcher": "^2.2.0",
     "karma-mocha": "^1.3.0",

test/integration/scenarios/basic-setup/basic-setup.test.js

@@ -1,10 +1,13 @@
 /* eslint-disable prettier/prettier */
+
 import karmaChromeLauncher from 'karma-chrome-launcher';
 import karmaMocha from 'karma-mocha';
 import karmaChai from 'karma-chai';
 
 import ScenarioUtils from '../../utils/ScenarioUtils';
 
+process.env.CHROME_BIN = require('puppeteer').executablePath();
+
 const path = require('path');
 
 const karmaWebpack = require('../../../../lib/index');