Relax some shellcheck tests and fix remaining issues

3 jobs for tests in 1 minute and 7 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #39456
allowed to fail
dockerfiles

00:00:45

passed #39455
allowed to fail
shellcheck

00:00:43

failed #39457
allowed to fail
yamllint

00:00:24

 
Name Stage Failure
failed
yamllint Test
  55:81     warning  line too long (185 > 80 characters)  (line-length)
56:81 warning line too long (85 > 80 characters) (line-length)
78:81 warning line too long (114 > 80 characters) (line-length)
79:81 warning line too long (118 > 80 characters) (line-length)
93:81 warning line too long (136 > 80 characters) (line-length)
107:81 warning line too long (156 > 80 characters) (line-length)
108:81 warning line too long (146 > 80 characters) (line-length)

ERROR: Job failed: exit code 1