Update flask requirement from <=3.0.3,>=3.0 to >=3.0,<=3.1.0 (#7330)

Updates the requirements on [flask](https://github.com/pallets/flask) to permit the latest version.
- [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/3.0.0...3.1.0)

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

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pyproject.toml

@@ -37,7 +37,7 @@ dependencies = [
     "Brotli>=1.0,<=1.1.0",
     "certifi>=2019.9.11",  # no upper bound here to get latest CA bundle
     "cryptography>=42.0,<43.1",  # relaxed upper bound here to get security fixes
-    "flask>=3.0,<=3.0.3",
+    "flask>=3.0,<=3.1.0",
     "h11>=0.11,<=0.14.0",
     "h2>=4.1,<=4.1.0",
     "hyperframe>=6.0,<=6.0.1",