build(deps): update onnxruntime requirement in /requirements

Updates the requirements on [onnxruntime](https://github.com/microsoft/onnxruntime) to permit the latest version.
- [Release notes](https://github.com/microsoft/onnxruntime/releases)
- [Changelog](https://github.com/microsoft/onnxruntime/blob/main/docs/ReleaseManagement.md)
- [Commits](microsoft/onnxruntime@v1.12.0...v1.19.0)

---
updated-dependencies:
- dependency-name: onnxruntime
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements/audio.txt

@@ -7,5 +7,5 @@ pystoi >=0.4.0, <0.5.0
 torchaudio >=0.10.0, <2.5.0
 gammatone >=1.0.0, <1.1.0
 librosa >=0.9.0, <0.11.0
-onnxruntime >=1.12.0, <1.19 # installing onnxruntime_gpu-gpu failed on macos
+onnxruntime >=1.12.0, <1.20 # installing onnxruntime_gpu-gpu failed on macos
 requests >=2.19.0, <2.33.0