fix sync failed error when fetching commits of deleted branch

[ATPEEE]

Our team fix sync failed error when fetching commits of deleted branch as the following ideas:
#114 (comment)

Also, we refactor GithubPipelineService following the picture below:

We extract several services from GithubPipelineService to make it independent.
Thus, we add some unit tests according to new services and fix GithubPipelineServiceTest.

[codecov-commenter]

Codecov Report

Merging #124 (2fe101a) into main (3b70143) will decrease coverage by 0.04%.
The diff coverage is 94.01%.

@@            Coverage Diff             @@
##             main     #124      +/-   ##
==========================================
- Coverage   94.26%   94.22%   -0.05%     
==========================================
  Files          88       92       +4     
  Lines        4306     4344      +38     
  Branches      251      255       +4     
==========================================
+ Hits         4059     4093      +34     
- Misses        124      125       +1     
- Partials      123      126       +3     

Impacted Files	Coverage Δ
...etrik/project/domain/repository/BuildRepository.kt	80.95% <ø> (ø)
...domain/service/githubactions/ExecutionConverter.kt	100.00% <ø> (ø)
...project/domain/service/githubactions/RunService.kt	88.57% <ø> (ø)
...t/infrastructure/github/feign/GithubFeignClient.kt	23.07% <ø> (ø)
...infrastructure/jenkins/feign/JenkinsFeignClient.kt	50.00% <ø> (ø)
...n/metrik/project/rest/SynchronizationController.kt	56.66% <ø> (ø)
...in/metrik/project/rest/validation/EnumValidator.kt	33.33% <0.00%> (ø)
...astructure/github/feign/response/BranchResponse.kt	50.00% <50.00%> (ø)
...ject/domain/service/githubactions/BranchService.kt	94.44% <94.44%> (ø)
...domain/service/githubactions/PipelineRunService.kt	94.44% <94.44%> (ø)
... and 15 more

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[kevinlzw]

Approved

[zhe-zhao]

Hey @ATPEEE found a few conflicts after the last review. Could you please have a look?

[ATPEEE]

Hey @ATPEEE found a few conflicts after the last review. Could you please have a look?

Hi, because roujing forked my repo, so my changes has been involved in.
please look at #125
So I will close this PR.