update flake

[aakropotkin]

Summary

Updates flake.{nix,lock} and makes minor tweaks necessary to build using nix or on a NixOS system.

Related Issues / Discussions

#7011

QA Instructions

Tested locally on a NixOS system.

Merge Plan

Checklist

• The PR has a short but descriptive title, suitable for a changelog
• Tests added / updated (if applicable)
• Documentation added / updated (if applicable)

[psychedelicious]

Thanks for sorting this out!

[psychedelicious]

There are some minor dependency changes, we'll need do some testing on this after the v5.1.0 release to ensure this doesn't introduce any regressions.

[psychedelicious]

Did some testing - no issues.

Details

The dep changes are mediapipe, onnx, onnxruntime, which are no longer pinned to specific versions.

First I uninstalled these packages:

...
  Successfully uninstalled mediapipe-0.10.7
...
  Successfully uninstalled onnx-1.15.0
...
  Successfully uninstalled onnxruntime-1.16.3
...

Then I reinstalled my local invokeai, letting pip choose the versions. I got these new packages:

...
Successfully installed InvokeAI-5.1.0 jax-0.4.34 jaxlib-0.4.34 mediapipe-0.10.15 ml-dtypes-0.5.0 onnx-1.17.0 onnxruntime-1.19.2 opt-einsum-3.4.0 protobuf-4.25.5

We use mediapipe for face detection in the mediapipe_face_detection node and the FaceTools nodes. These work fine after the upgrade.

We use onnx and onnxruntime for pose detection in the dw_openpose_detection node. This works fine after the upgrade.

We have the remnants of ONNX SD inference support hanging around in the app, but we don't really support that any more anyways, so no worries there.

I also did a couple normal SDXL generations and they all worked fine.