Update flask requirement from <3,>=2.0.0 to >=2.0.0,<4

[dependabot]

Updates the requirements on flask to permit the latest version.

Release notes

Sourced from flask's releases.

3.0.1

This is a fix release for the 3.0.x feature release branch.

Fixes an issue where using other JSON providers, such as flask-orjson, previously caused loaded session data to have an incorrect format in some cases.

• Changes: https://flask.palletsprojects.com/en/3.0.x/changes/#version-3-0-1
• Milestone: https://github.com/pallets/flask/milestone/32?closed=1
• PyPI: https://pypi.org/project/Flask/3.0.1/

Changelog

Sourced from flask's changelog.

Version 3.0.1

Released 2024-01-18

• Correct type for path argument to send_file. :issue:5230
• Fix a typo in an error message for the flask run --key option. :pr:5344
• Session data is untagged without relying on the built-in json.loads object_hook. This allows other JSON providers that don't implement that. :issue:5381
• Address more type findings when using mypy strict mode. :pr:5383

Version 3.0.0

Released 2023-09-30

• Remove previously deprecated code. :pr:5223
• Deprecate the __version__ attribute. Use feature detection, or importlib.metadata.version("flask"), instead. :issue:5230
• Restructure the code such that the Flask (app) and Blueprint classes have Sans-IO bases. :pr:5127
• Allow self as an argument to url_for. :pr:5264
• Require Werkzeug >= 3.0.0.

Version 2.3.3

Released 2023-08-21

• Python 3.12 compatibility.
• Require Werkzeug >= 2.3.7.
• Use flit_core instead of setuptools as build backend.
• Refactor how an app's root and instance paths are determined. :issue:5160

Version 2.3.2

Released 2023-05-01

• Set Vary: Cookie header when the session is accessed, modified, or refreshed.
• Update Werkzeug requirement to >=2.3.3 to apply recent bug fixes.

Version 2.3.1

... (truncated)

Commits

• f622b1c release version 3.0.1
• 5fcc999 fix create release action
• da3a0dd fix slsa generator version
• 5e059be update actions versions
• bae6ee8 address mypy strict findings (#5383)
• 81b3c85 update requirements
• 08d3185 update pre-commit hooks
• 6000e80 address mypy strict findings
• 5a48a0f untag without object_hook (#5382)
• 700fc7d untag without object_hook
• Additional commits viewable in compare view

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (6d33050) 83.08% compared to head (4cab0f6) 83.08%.

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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #191   +/-   ##
=======================================
  Coverage   83.08%   83.08%           
=======================================
  Files          26       26           
  Lines        1011     1011           
=======================================
  Hits          840      840           
  Misses        171      171