Add unarchiving support

[Tsuesun]

The github API now allows unarchiving an archived repo. This removes the check so that we ar able to unarchive repos using pygithub.

https://docs.github.com/en/rest/repos/repos?apiVersion=2022-11-28#update-a-repository

[codecov-commenter]

Codecov Report

Base: 98.77% // Head: 98.77% // No change to project coverage 👍

Coverage data is based on head (ed3409b) compared to base (5e27c10).
Patch coverage: 100.00% of modified lines in pull request are covered.

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Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2391   +/-   ##
=======================================
  Coverage   98.77%   98.77%           
=======================================
  Files         117      117           
  Lines       11674    11674           
=======================================
  Hits        11531    11531           
  Misses        143      143           

Impacted Files	Coverage Δ
github/Repository.py	97.20% <100.00%> (ø)

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[Tsuesun]

@sfdye Could I get a review?

Also, is this project actively maintained? I see a lot of issues and PRs that haven't been reviewed. Happy to help out any way that I can.

[Tsuesun]

@sfdye, thanks for the review. Is there any particular issue you would like me to have a look at?

[EnricoMi]

... Is there any particular issue you would like me to have a look at?

I'd suggest to look at those issues / pull requests that have the most 👍, that is a good indicator of popularity: