Bump nltk from 3.9.2 to 3.9.3 in the pip group across 1 directory

Bumps the pip group with 1 update in the / directory: [nltk](https://github.com/nltk/nltk).


Updates `nltk` from 3.9.2 to 3.9.3
- [Changelog](https://github.com/nltk/nltk/blob/develop/ChangeLog)
- [Commits](nltk/nltk@3.9.2...3.9.3)

---
updated-dependencies:
- dependency-name: nltk
  dependency-version: 3.9.3
  dependency-type: direct:production
  dependency-group: pip
...

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

Author: dependabot[bot]

requirements.txt

@@ -26,7 +26,7 @@ mkdocs-material==9.7.1
 mkdocs-material-extensions==1.3.1
 mkdocs-minify-plugin==0.8.0
 mdx-truly-sane-lists==1.3
-nltk==3.9.2
+nltk==3.9.3
 pandas==2.3.3
 pep562==1.1
 Pygments==2.19.2