Pull Request, Push 에서 Github Actions 추가

[JHyeok]

What is this PR? 🔍

Changes 📝

• Pull Request 상황에서의 Github Actions 추가
• Push 상황에서의 Github Actions 추가
• Docker Compose에서 Server 이미지 태그 버전 수정

Screenshot 📷

[x]

[codecov]

Codecov Report

Merging #5 into master will not change coverage by %.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master       #5   +/-   ##
=======================================
  Coverage   97.66%   97.66%           
=======================================
  Files          30       30           
  Lines         515      515           
  Branches       37       37           
=======================================
  Hits          503      503           
  Misses         12       12           

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