Bump flask from 3.1.1 to 3.1.3

Bumps [flask](https://github.com/pallets/flask) from 3.1.1 to 3.1.3.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](https://github.com/pallets/flask/compare/3.1.1...3.1.3)

---
updated-dependencies:
- dependency-name: flask
  dependency-version: 3.1.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -11,7 +11,7 @@ toml==0.10.2
 translators==5.9.9
 pyttsx3==2.98
 tomlkit==0.13.2
-Flask==3.1.1
+Flask==3.1.3
 clean-text==0.6.0
 unidecode==1.4.0
 spacy==3.8.11