Add list repo org variables and secrets

[tomfeigin]

This wraps two repository API endpoints which are currently not available in the interface:

• List repository organization actions secrets
• List repository organization actions variables

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (20fc901) 97.71% compared to head (22cf5a9) 97.71%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3058   +/-   ##
=======================================
  Coverage   97.71%   97.71%           
=======================================
  Files         152      152           
  Lines       13326    13332    +6     
=======================================
+ Hits        13021    13027    +6     
  Misses        215      215           
  Partials       90       90           

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[gmlewis]

Thank you, @tomfeigin !
LGTM.

Awaiting second LGTM+Approval from any other contributor to this repo before merging.

[fchimpan]

Great job! Thanks @tomfeigin
LGTM🎉

[gmlewis]

Thank you, @fchimpan !
Merging.