Bump flask from 3.0.0 to 3.0.3 (#9)

Bumps [flask](https://github.com/pallets/flask) from 3.0.0 to 3.0.3.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](pallets/flask@3.0.0...3.0.3)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -1,3 +1,3 @@
-flask==3.0.0
+flask==3.0.3
 flask-restful==0.3.10
 gunicorn==21.2.0