add galaxy.yml to yamllinting

[rndmh3ro]

after changeing the var-substitute action, we can now yamllint the galaxy.yml

[codecov]

Codecov Report

Merging #191 (b75426d) into master (d7922b4) will increase coverage by 3.47%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #191      +/-   ##
==========================================
+ Coverage   93.80%   97.27%   +3.47%     
==========================================
  Files          40       41       +1     
  Lines        1097     1101       +4     
  Branches      172      172              
==========================================
+ Hits         1029     1071      +42     
  Misses         16       16              
+ Partials       52       14      -38     

Flag	Coverage Δ
integration	93.80% <ø> (ø)
sanity	53.31% <ø> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
plugins/doc_fragments/common_options.py	100.00% <0.00%> (ø)
plugins/modules/icinga_service.py	93.33% <0.00%> (+1.33%)	⬆️
plugins/modules/icinga_service_apply.py	97.72% <0.00%> (+2.27%)	⬆️
plugins/modules/icinga_scheduled_downtime.py	94.44% <0.00%> (+2.77%)	⬆️
plugins/modules/icinga_host.py	92.85% <0.00%> (+3.57%)	⬆️
plugins/modules/icinga_command.py	100.00% <0.00%> (+3.57%)	⬆️
plugins/modules/icinga_notification.py	92.85% <0.00%> (+3.57%)	⬆️
plugins/modules/icinga_command_template.py	100.00% <0.00%> (+3.57%)	⬆️
plugins/modules/icinga_user.py	100.00% <0.00%> (+3.84%)	⬆️
plugins/modules/icinga_zone.py	100.00% <0.00%> (+3.84%)	⬆️
... and 29 more

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