Update backend-server-test.yml

clean test -> test -i로 변경

Author: sjhjack

.github/workflows/backend-server-test.yml

@@ -27,7 +27,7 @@ jobs:
         run: chmod +x gradlew
 
       - name: 🧪 Spring Boot Test
-        run: ./gradlew clean test
+        run: ./gradlew test -i
 
       - name: Add coverage to PR
         id: jacoco
@@ -37,4 +37,4 @@ jobs:
           paths: ${{ github.workspace }}/**/reports/jacoco/test/jacocoTestReport.xml
           token: ${{ secrets.GITHUB_TOKEN }}
           min-coverage-overall: 80
-          min-coverage-changed-files: 80
+          min-coverage-changed-files: 80