chore(deps): Bump gradio in /backend/python/openvoice

Bumps [gradio](https://github.com/gradio-app/gradio) from 4.38.1 to 4.44.1.
- [Release notes](https://github.com/gradio-app/gradio/releases)
- [Changelog](https://github.com/gradio-app/gradio/blob/main/CHANGELOG.md)
- [Commits](https://github.com/gradio-app/gradio/compare/gradio@4.38.1...gradio@4.44.1)

---
updated-dependencies:
- dependency-name: gradio
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

backend/python/openvoice/requirements-intel.txt

@@ -18,6 +18,6 @@ python-dotenv
 pypinyin==0.50.0
 cn2an==0.5.22
 jieba==0.42.1
-gradio==4.38.1
+gradio==4.44.1
 langid==1.1.6
 git+https://github.com/myshell-ai/MeloTTS.git