fixed CHROME_BIN environment variable for Docker

1 job for develop in 5 minutes and 9 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
failed #20769
node npm angular
coverage

00:05:09

 
Name Stage Failure
failed
coverage Test
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the mc_frontend@1.6.7 test script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm WARN Local package.json exists, but node_modules missing, did you mean to install?

npm ERR! A complete log of this run can be found in:
npm ERR! /root/.npm/_logs/2020-03-04T09_32_41_020Z-debug.log
ERROR: Job failed: exit status 1