Bump flask from 2.3.3 to 3.0.3

Bumps [flask](https://github.com/pallets/flask) from 2.3.3 to 3.0.3.
- [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/2.3.3...3.0.3)

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

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

requirements.txt

@@ -12,7 +12,7 @@ translators==5.9.1
 pyttsx3==2.90
 Pillow==10.3.0
 tomlkit==0.11.8
-Flask==2.3.3
+Flask==3.0.3
 clean-text==0.6.0
 unidecode==1.3.8
 spacy==3.5.3