chore: DockerHub image update workflow

Author: GermanMT

.github/workflows/docker-image.yml

@@ -0,0 +1,22 @@
+name: Docker Image CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Docker login
+      run: docker login -u ${{secrets.DOCKER_USER}} -p ${{secrets.DOCKER_PASSWORD}}
+    - name: Build the Docker image
+      run: docker build . --file Dockerfile --tag ${{secrets.DOCKER_USER}}/depex
+    - name: Push the Docker image
+      run: docker push ${{secrets.DOCKER_USER}}/depex