Bump flask from 3.1.2 to 3.1.3

Bumps [flask](https://github.com/pallets/flask) from 3.1.2 to 3.1.3.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](pallets/flask@3.1.2...3.1.3)

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

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

Author: dependabot[bot]

poetry.lock

@@ -38,7 +38,7 @@ requires-poetry = "2.2.1"  # Keep in sync with `.pre-commit-config.yaml` and `co
 
 [tool.poetry.dependencies]
 authlib = "^1.6.6"
-Flask = "^3.0.3"
+Flask = "^3.1.3"
 flask-limiter = { version = "^3.12" }
 flask-login = "^0.6.3"
 Flask-Security = { version = "5.7.1", extras = ["common", "fsqla"] }