chore(deps): bump nltk from 3.8.1 to 3.9 in /requirements

Bumps [nltk](https://github.com/nltk/nltk) from 3.8.1 to 3.9.
- [Changelog](https://github.com/nltk/nltk/blob/develop/ChangeLog)
- [Commits](nltk/nltk@3.8.1...3.9)

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

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

requirements/all_requirements.txt

@@ -327,7 +327,7 @@ networkx==3.2.1
     #   scikit-image
     #   sec-certs (./../pyproject.toml)
     #   torch
-nltk==3.8.1
+nltk==3.9
     # via sentence-transformers
 nodeenv==1.8.0
     # via pre-commit

requirements/nlp_requirements.txt

@@ -248,7 +248,7 @@ networkx==3.2.1
     #   scikit-image
     #   sec-certs (./../pyproject.toml)
     #   torch
-nltk==3.8.1
+nltk==3.9
     # via sentence-transformers
 numba==0.58.1
     # via