Get release by tag name

[georgeorfanidi]

No description provided.

[BenFradet]

The new test is failing for me locally, do you have the same?

[codecov]

Codecov Report

Merging #499 into master will decrease coverage by 11.66%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           master     #499       +/-   ##
===========================================
- Coverage   90.37%   78.70%   -11.67%     
===========================================
  Files          24       24               
  Lines         613      620        +7     
  Branches        3        1        -2     
===========================================
- Hits          554      488       -66     
- Misses         59      132       +73     

Impacted Files	Coverage Δ
...ala/github4s/interpreters/GitDataInterpreter.scala	100.00% <100.00%> (ø)
...ithub4s/interpreters/RepositoriesInterpreter.scala	96.15% <100.00%> (+0.20%)	⬆️
github4s/src/main/scala/github4s/Github.scala	0.00% <0.00%> (-100.00%)	⬇️
...ithub4s/src/main/scala/github4s/GithubConfig.scala	0.00% <0.00%> (-100.00%)	⬇️
...4s/src/main/scala/github4s/http/Http4sSyntax.scala	0.00% <0.00%> (-100.00%)	⬇️
...s/src/main/scala/github4s/domain/PullRequest.scala	0.00% <0.00%> (-100.00%)	⬇️
...s/src/main/scala/github4s/modules/GithubAPIs.scala	0.00% <0.00%> (-100.00%)	⬇️
.../src/main/scala/github4s/http/RequestBuilder.scala	0.00% <0.00%> (-100.00%)	⬇️
...ub4s/src/main/scala/github4s/http/HttpClient.scala	17.39% <0.00%> (-69.57%)	⬇️
.../scala/github4s/interpreters/AuthInterpreter.scala	46.66% <0.00%> (-53.34%)	⬇️
... and 1 more

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[juanpedromoreno]

Thanks for your time @georgeorfanidi !

[BenFradet]

I think we're missing documentation for getTag, also it might be better to split this PR in two:

• one for getTag
• another one for getReleaseByTagName
  so that they're not squashed into one commit, wdyt?