Bump wtpsplit from 1.0.1 to 2.1.1

Bumps [wtpsplit](https://github.com/segment-any-text/wtpsplit) from 1.0.1 to 2.1.1.
- [Release notes](https://github.com/segment-any-text/wtpsplit/releases)
- [Changelog](https://github.com/segment-any-text/wtpsplit/blob/main/RELEASE.md)
- [Commits](segment-any-text/wtpsplit@1.0.1...2.1.1)

---
updated-dependencies:
- dependency-name: wtpsplit
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

docker_requirements.txt

@@ -37,5 +37,5 @@ tltk==1.6.8
 torch==1.13.1
 transformers==4.38.0
 ufal.chu-liu-edmonds==1.0.2
-wtpsplit==1.0.1
+wtpsplit==2.1.1
 wunsen==0.0.3