Bump timm from 1.0.19 to 1.0.20 in /tests/python_tests

Bumps [timm](https://github.com/huggingface/pytorch-image-models) from 1.0.19 to 1.0.20.
- [Release notes](https://github.com/huggingface/pytorch-image-models/releases)
- [Commits](huggingface/pytorch-image-models@v1.0.19...v1.0.20)

---
updated-dependencies:
- dependency-name: timm
  dependency-version: 1.0.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

tests/python_tests/requirements.txt

@@ -20,7 +20,7 @@ einops==0.8.1
 torchvision==0.17.2; platform_system == "Darwin" and platform_machine == "x86_64"
 torchvision==0.23.0+cpu; platform_system != "Darwin" or platform_machine != "x86_64"
 # - openbmb/MiniCPM-V-2
-timm==1.0.19
+timm==1.0.20
 # - openai/whisper-base
 librosa==0.11.0
 soundfile==0.13.1