feat(EditAccountService): changed edit method to update repository

[Allianaab2m]

What does this PR do?

• EditAccountServiceがAccountRepositoryのEditメソッドを使い，データストアの値を書き換えるように
• テストケースのリファクタ

[github-actions]

@Allianaab2m
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Available types:

• feat: A new feature
• fix: A bug fix
• docs: Documentation only changes
• style: Changes that do not affect the meaning of the code (white-space, formatting, missing semi-colons, etc)
• refactor: A code change that neither fixes a bug nor adds a feature
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[codecov]

Codecov Report

Attention: Patch coverage is 82.60870% with 4 lines in your changes are missing coverage. Please review.

Project coverage is 48.40%. Comparing base (90c9f25) to head (ba00825).
Report is 3 commits behind head on main.

Files	Patch %	Lines
pkg/accounts/service/editAccount.ts	82.60%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #263      +/-   ##
==========================================
+ Coverage   46.39%   48.40%   +2.01%     
==========================================
  Files          38       38              
  Lines        4156     4179      +23     
  Branches      271      306      +35     
==========================================
+ Hits         1928     2023      +95     
+ Misses       2228     2156      -72     

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