fix: typo: missing $ sign

action.yml

@@ -14,6 +14,10 @@ inputs:
       description: 'Docker build arguments'
       required: false
       default: ''
+    platform:
+      description: 'Platform'
+      required: false
+      default: 'linux/amd64'
 outputs:
   image_version:
     description: "Image version"
@@ -34,6 +38,5 @@ runs:
       shell: sh
     - name: Build and push docker
       run: |
-        docker build . -t ${{ inputs.image_name }}:${{ steps.git.outputs.short_hash }} ${{ inputs.aditional_args }} && \
+        docker buildx build --tag ${{ inputs.image_name }}:${{ steps.git.outputs.short_hash }} ${{ inputs.aditional_args }} --platform ${{inputs.platform }} --push .
-        docker push ${{ inputs.image_name }}:${{ steps.git.outputs.short_hash }}
       shell: sh