adds docker push

.github/workflows/build-package.yml

@@ -1,4 +1,4 @@
-name: Build linux
+name: Build linux and push docker image
 on: [push, pull_request]
 
 jobs:
@@ -10,3 +10,24 @@ jobs:
     - uses: actions/checkout@v3
     - name: make install
       run: make install
+
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3
+    -
+      name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+    -
+      name: Login to Docker Hub
+      uses: docker/login-action@v3
+      with:
+        registry: docker.io
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+    -
+      name: Build and push
+      uses: docker/build-push-action@v5
+      with:
+        file: ./dockerfiles/Dockerfile
+        context: .
+        push: true
+        tags: roshkhatri/valkeydemo:latest