chore: Add docker image push workflow

.github/workflows/push.yml

@@ -0,0 +1,35 @@
+name: push
+on:
+  push:
+    branches: [ main ]
+
+env:
+  IMAGE_NAME: pyro-risks
+  DOCKERHUB_USER: ${{ secrets.DOCKERHUB_LOGIN }}
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Build docker
+        run: docker compose build -t $DOCKERHUB_USER/$IMAGE_NAME:latest
+      - name: Login to DockerHub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_LOGIN }}
+          password: ${{ secrets.DOCKERHUB_PW }}
+      - name: Push to hub
+        run: docker push $DOCKERHUB_USER/$IMAGE_NAME:latest
+      - name: Login to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Push to container registry
+        run: |
+          IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME
+          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
+          docker tag $DOCKERHUB_USER/$IMAGE_NAME:latest $IMAGE_ID:latest
+          docker push $IMAGE_ID:latest