Replaced GitHub token login with Personal Access Token (GHCR_PAT)

to allow pushing images to the private GitHub Container Registry (ghcr.io).

.github/workflows/build-and-deploy.yaml

@@ -29,11 +29,10 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Build and push Docker image
+      - name: Build and Push Docker Image
         run: |
-          IMAGE_NAME="ghcr.io/${{ github.repository }}:$VERSION"
-          docker build -t $IMAGE_NAME .
-          docker push $IMAGE_NAME
+          docker build -t ghcr.io/${{ github.repository }}:$VERSION .
+          docker push ghcr.io/${{ github.repository }}:$VERSION
 
       - name: Set up kubeconfig from secret
         run: |