feat(ci): 테스트 커버리지 자동화

[noahluftyang]

변경사항

• 테스트 커버리지 리포트를 자동화함

시각자료

체크리스트

• 기능 명세를 작성하였나요?
• 테스트 코드를 작성하였나요?

추가 논의사항

[changeset-bot]

⚠️ No Changeset found

Latest commit: 96fe81e

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[codecov]

Welcome to Codecov 🎉

Once you merge this PR into your default branch, you're all set! Codecov will compare coverage reports and display results in all future pull requests.

ℹ️ You can also turn on project coverage checks and project coverage reporting on Pull Request comment

Thanks for integrating Codecov - We've got you covered ☂️

[noahluftyang]

이거 approve 해줄 사람 구함~

[developerjhp]

LGTM 감사합니다!!!!