chore: Bump Flask to 2.3.3 and update dependencies

[petesfrench]

Done

• Updates Flask to 2.3.3
• Update other requirements where needed to be compatible

QA

• I have set up demo on u.com. Check that the packages provided by Flask-Base are working:
  https://ubuntu-com-14024.demos.haus/

[carkod]

Can you bump the version of flask-base? if you don't do it won't automatically trigger a renovate PR and you can't really reference it in the requirements.txt.

Also, lint and test are stuck, can you take a look? Maybe rebase could work as I've merged the new versions of actions/checkout

[petesfrench]

@samhotep Any idea why these checks are hanging?

[petesfrench]

@carkod Can you take another look please

[carkod]

@samhotep Any idea why these checks are hanging?

Try updating the labels.

By labels I mean the Ubuntu version there.
If we are still using Github runners, then that image is deprecated
otherwise, I think we need to reach out to the Github actions self-hosted runners team

[samhotep]

As @carkod suggested I've updated the versions, but the checks are borked now - taking a look

[samhotep]

@petesfrench some tests are failing,

you're almost good to merge :)