message: ci: update firefox version to 61
  PR Close
diff: @@ -46,7 +46,7 @@ var customLaunchers = {
  'SL_CHROME': {base: 'SauceLabs', browserName: 'chrome', version: '67'},
  'SL_CHROMEBETA': {base: 'SauceLabs', browserName: 'chrome', version: 'beta'},
  'SL_CHROMEDEV': {base: 'SauceLabs', browserName: 'chrome', version: 'dev'},
  - 'SL_FIREFOX': {base: 'SauceLabs', browserName: 'firefox', version: '54'},
  + 'SL_FIREFOX': {base: 'SauceLabs', browserName: 'firefox', version: '61'},
  'SL_FIREFOXBETA':
  {base: 'SauceLabs', platform: 'Windows 10', browserName: 'firefox', version: 'beta'},
  'SL_FIREFOXDEV':
  