.gitignore: exclude some docker & selenium

3 jobs for B9691-CheckboxDynamicUpdateReadonly in 3 minutes and 28 seconds (queued for 1 second)
Status Name Job ID Coverage
  Before
passed documentation #4355

00:00:37

 
  Build
passed snapshot #4356

00:01:15

 
  Selenium
passed selenium #4357

00:01:36