Upgrade Flask to 2.3.3

[andrii-korotkov-verkada]

Description

Right now Flask is pinned to be <2.3

airflow/hatch_build.py

Lines 387 to 390 in 3d421f7

	# Flask 2.3 is scheduled to introduce a number of deprecation removals - some of them might be breaking
	# for our dependencies - notably `_app_ctx_stack` and `_request_ctx_stack` removals.
	# We should remove the limitation after 2.3 is released and our dependencies are updated to handle it
	"flask>=2.2.1,<2.3",

. Update this to be <2.4 or <3.

Use case/motivation

This pin makes it pretty hard to use in some environments, such as Bazel-built monorepo with a Flask version higher than that. Also, an upgrade probably needs to happen eventually anyways.

Related issues

No response

Are you willing to submit a PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[boring-cyborg]

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[potiuk]

I am afraid it will not happen.

We are getting rid of flask altogether anyway in Airlfow 3. This limit comes from connexion 2 - latest version 2.14.2 that we are getting rid as well in Airflow 3. One of the reasons is that upgrading to Connexion 3 is non-trivial (#39055 was a massive green PR that nobody had the courage to continue working on), actually it's very hard to migrate because they changed architecture completely, so we are switching to FastAPi. Because it turned out to be easier.

So ... this issue is "won't do"

[andrii-korotkov-verkada]

Ah, okay.

We are getting rid of flask altogether anyway in Airlfow 3.

This would work too.