Refactor GitHub Actions workflow for builds and pushes

Updated CI/CD workflow to include build-and-push job and modified build steps.

Author: 2Jin1031

.github/workflows/dev-cd.yml

@@ -7,7 +7,7 @@ on:
       - "**"
 
 jobs:
-  build:
+  build-and-push:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout source
@@ -21,16 +21,11 @@ jobs:
 
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v3
+        with:
+          cache-read-only: false
 
       - name: Build project
-        run: ./gradlew bootJar
-
-  push:
-    needs: build
-    runs-on: ubuntu-24.04
-    steps:
-      - name: Checkout source
-        uses: actions/checkout@v4
+        run: ./gradlew clean bootJar
 
       - name: Login to Docker Hub
         uses: docker/login-action@v3
@@ -49,7 +44,7 @@ jobs:
             ${{ secrets.DOCKERHUB_USERNAME }}/crew-wiki:${{ github.sha }}
 
   deploy:
-    needs: push
+    needs: build-and-push
     runs-on: ubuntu-24.04
     steps:
       - name: Deploy to Server