Fix CI pipeline: add mvnw exec permission, fix DockerFile casing, remove old maven.yml

Author: Paras14

.github/workflows/deploy.yml

@@ -34,7 +34,9 @@ jobs:
           cache-dependency-path: backend/pom.xml
 
       - name: Run tests
-        run: ./mvnw -B test
+        run: |
+          chmod +x ./mvnw
+          ./mvnw -B test
 
       - name: Upload test results
         if: failure()
@@ -52,7 +54,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Build backend image
-        run: docker build -t shelfsense-backend:scan ./backend
+        run: docker build -f ./backend/DockerFile -t shelfsense-backend:scan ./backend
 
       - name: Run Trivy vulnerability scan
         uses: aquasecurity/trivy-action@v0.35.0