Add docker image wokflow

.github/workflows/docker-push-image.yml

@@ -0,0 +1,28 @@
+name: Push OpenSIPS CLI Images in Docker Hub
+
+on:
+  push:
+  repository_dispatch:
+  workflow_dispatch:
+
+jobs:
+
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Log in to Docker Hub
+      uses: docker/[email protected]
+      with:
+        username: ${{ secrets.DOCKER_USERNAME }}
+        password: ${{ secrets.DOCKER_TOKEN }}
+
+    - name: Build and push Docker image
+      uses: docker/build-push-action@v4
+      with:
+        context: .
+        push: true
+        tags: opensips/opensips-cli:latest