feat: add support Enterprise Apps (not ready - private beta)

[alexymantha]

No description provided.

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[codecov]

Codecov Report

Attention: Patch coverage is 0% with 36 lines in your changes missing coverage. Please review.

Project coverage is 92.66%. Comparing base (2b8c7fa) to head (08ae098).
Report is 114 commits behind head on master.

Files with missing lines	Patch %	Lines
github/enterprise_apps.go	0.00%	36 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3273      +/-   ##
==========================================
- Coverage   97.72%   92.66%   -5.07%     
==========================================
  Files         153      172      +19     
  Lines       13390    11705    -1685     
==========================================
- Hits        13085    10846    -2239     
- Misses        215      765     +550     
- Partials       90       94       +4     

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