CI build-test 추가

.github/workflows/build-test.yml

@@ -0,0 +1,37 @@
+name: PLUV Backend Build Test
+
+on:
+  workflow_dispatch:
+  pull_request:
+    types: [ opened, synchronize, reopened ]
+    branches:
+      - main
+
+permissions: write-all
+
+jobs:
+  build:
+    name: Build with Gradle
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: 해당 브랜치로 체크아웃
+        uses: actions/checkout@v2
+
+      - name: JDK 17로 설정
+        uses: actions/setup-java@v2
+        with:
+          java-version: 17
+          distribution: 'temurin'
+
+      - name: Give permission for Gradle
+        run: chmod +x gradlew
+
+      - name: Build with Gradle
+        run: ./gradlew clean build
+
+      - name: 테스트 결과를 PR 코멘트에 등록
+        uses: EnricoMi/publish-unit-test-result-action@v1
+        if: always()
+        with:
+          files: '**/build/test-results/test/TEST-*.xml'