Bump transformers from 4.39.3 to 4.40.2

Bumps [transformers](https://github.com/huggingface/transformers) from 4.39.3 to 4.40.2.
- [Release notes](https://github.com/huggingface/transformers/releases)
- [Commits](https://github.com/huggingface/transformers/compare/v4.39.3...v4.40.2)

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

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

requirements.txt

@@ -17,7 +17,7 @@ clean-text==0.6.0
 unidecode==1.3.8
 spacy==3.5.3
 torch==2.3.0
-transformers==4.39.3
+transformers==4.40.2
 ffmpeg-python==0.2.0
 elevenlabs==0.2.17
 yt-dlp==2023.7.6