Fix Windows release builds.

[AdamHillier]

What do these changes do?

This PR (hopefully) fixes the Windows release builds, by copying in the most recent Windows build config from TensorFlow, using some extra commands that reduce memory usage, and increasing the size of the pagefile (swapfile).

How Has This Been Tested?

I will trigger a nightly release from this branch.

Benchmark Results

N/A.

Related issue number

Relies on #589.

[AdamHillier]

Test release run: https://github.com/larq/compute-engine/runs/1761598156

[AdamHillier]

Test release run: https://github.com/larq/compute-engine/runs/1761598156

The Windows builds succeeded here, but the Linux ones failed. @lgeiger do you think this is related to this PR?

[lgeiger]

The Windows builds succeeded here, but the Linux ones failed. @lgeiger do you think this is related to this PR?

Great news on the Windows builds!

The Linux failures could either be related to #589 since we are now hardcoding the Python env variables or it could be due to a change in the Dockerfile.
It looks like tensorflow/tensorflow:custom-op-ubuntu16 was updated recently, it might be worth to pin it to tensorflow/tensorflow:2.2.0-custom-op-ubuntu16 instead and try again.
Our release setup is a bit hacky and needs to work around a few issues with the docker file, but I think moving to the tensorflow/tensorflow:2.4.0-custom-op-ubuntu16 might require more work, so I'd rather postpone this until we really need it (e.g. for Python 3.9 support).

[lgeiger]

Thank you so much for debugging this 🙏

[AdamHillier]

I ran a build with the updated code last night and everything is now green, including the Linux builds, so I think this is good to go: https://github.com/larq/compute-engine/actions/runs/510137328

[lgeiger]

Great! Thanks for fixing the build 🚀