[BOOK-381] chore: CI 플로우 개선

병렬 실행, OS 통일, JDK 버전 통일, 설정 일관

Author: easyhooon

.github/workflows/android-ci.yml

@@ -21,11 +21,11 @@ jobs:
             -   name: Checkout
                 uses: actions/checkout@v4
 
-            -   name: Setup JDK 17
+            -   name: Setup JDK 21
                 uses: actions/setup-java@v4
                 with:
                     distribution: 'corretto'
-                    java-version: 17
+                    java-version: 21
 
             -   name: Setup Android SDK
                 uses: android-actions/setup-android@v2
@@ -53,11 +53,27 @@ jobs:
 
     stability_check:
         name: Compose Stability Check
-        runs-on: macos-latest
-        needs: ci-build
+        runs-on: ubuntu-latest
+
+        if: ${{ !contains(github.event.pull_request.labels.*.name, 'skip-ci') }}
+
         steps:
-            -   name: Check out code
-                uses: actions/checkout@v5
+            -   name: Checkout
+                uses: actions/checkout@v4
+
+            -   name: Setup JDK 21
+                uses: actions/setup-java@v4
+                with:
+                    distribution: 'corretto'
+                    java-version: 21
+
+            -   name: Setup Android SDK
+                uses: android-actions/setup-android@v2
+
+            -   name: Setup Gradle
+                uses: gradle/gradle-build-action@v2
+                with:
+                    gradle-home-cache-cleanup: true
 
             -   name: Generate local.properties
                 run: echo '${{ secrets.LOCAL_PROPERTIES }}' | base64 -d > ./local.properties
@@ -68,11 +84,5 @@ jobs:
             -   name: Generate google-services.json
                 run: echo '${{ secrets.GOOGLE_SERVICES }}' | base64 -d > ./app/google-services.json
 
-            -   name: Set up JDK
-                uses: actions/setup-java@v5
-                with:
-                    distribution: 'zulu'
-                    java-version: 21
-
             -   name: Compose Stability Check
                 run: ./gradlew stabilityCheck