fix: 캐시 복원 실패했을 경우에만 yarn install 실행시키기

.github/workflows/ci-pipeline.yml

@@ -106,13 +106,15 @@ jobs:
 
       # 의존성 캐시 복원
       - name: Restore Yarn dependencies
+        id: cache-deps
         uses: actions/cache@v3
         with:
           path: node_modules
           key: ${{ runner.os }}-yarn-${{ hashFiles('yarn.lock') }}
 
       # 의존성 설치
       - name: Install dependencies
+        if: steps.cache-deps.outputs.cache-hit != 'true'
         run: yarn install
 
       # 테스트 실행