fix zip downloads

[rbren]

End-user friendly description of the problem this fixes or functionality that this introduces

• Include this change in the Release Notes. If checked, you must provide an end-user friendly description for your change below
  no changelog

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Give a summary of what the PR does, explaining any non-trivial design decisions

I broke this with the FD leak fix. This might cause leaks now? we need to fix everywhere that these requests are made and close the response

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Link of any specific issues this addresses

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To run this PR locally, use the following command:

docker run -it --rm   -p 3000:3000   -v /var/run/docker.sock:/var/run/docker.sock   --add-host host.docker.internal:host-gateway   -e SANDBOX_RUNTIME_CONTAINER_IMAGE=docker.all-hands.dev/all-hands-ai/runtime:76b755f-nikolaik   --name openhands-app-76b755f   docker.all-hands.dev/all-hands-ai/openhands:76b755f

[tofarr]

LGTM - Interesting that the request was not getting closed automagically