feat(docker): Dockerfile for smithery (try ubi9)

Author: manusa

Dockerfile

@@ -5,7 +5,7 @@ WORKDIR /app
 COPY ./ ./
 RUN make build
 
-FROM busybox
+FROM registry.access.redhat.com/ubi9/ubi-minimal:latest
 WORKDIR /app
 COPY --from=builder /app/kubernetes-mcp-server /app/kubernetes-mcp-server
 ENTRYPOINT ["/app/kubernetes-mcp-server"]