Fix docker create context (#15)

* Fix docker create context

Author: goruha

action.yml

@@ -50,7 +50,7 @@ runs:
       shell: bash
       id: buildx-context
       run: |
-        docker context create buildx-context
+        docker context create buildx-context || true 
 
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v1