core: add user settable token durations

[jmdilly]

Details

This PR enables users to specify a non default lifetime for users created app application token. By the way, it enforces expires value on API side.

Closes #5881

Current limitation : maximum duration is currently not enforce in the UI but only on API side. This is because I haven't find yet an easy way to provide that piece of information to the UI without add a new API endpoint which would require additionnal work. Nevertheless, if the chosen expiration date is invalid, an error message is still thrown up to the use explaining why it has failed. In my opinion, this enforcement within the UI could be enforced in a future improvement.

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Checklist

• [X] Local tests pass (ak test authentik/)
• [X] The code has been formatted (make lint-fix)

If an API change has been made

• [] The API schema has been updated (make gen-build)

If changes to the frontend have been made

• [X] The code has been formatted (make web)
• [X] The translation files have been updated (make i18n-extract)

If applicable

• [X] The documentation has been updated
• [X] The documentation has been formatted (make website)

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[codecov[bot]]

Codecov Report

Attention: Patch coverage is 31.03448% with 60 lines in your changes are missing coverage. Please review.

Project coverage is 45.89%. Comparing base (633028c) to head (12736d0).

Files	Patch %	Lines
authentik/core/tests/test_token_api.py	0.00%	42 Missing :warning:
authentik/core/api/tokens.py	13.33%	13 Missing :warning:
authentik/core/models.py	75.00%	4 Missing :warning:
authentik/core/signals.py	85.71%	1 Missing :warning:

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #7410       +/-   ##
===========================================
- Coverage   92.40%   45.89%   -46.51%     
===========================================
  Files         646      646               
  Lines       31851    31926       +75     
===========================================
- Hits        29431    14654    -14777     
- Misses       2420    17272    +14852     

Flag	Coverage Δ
e2e	44.38% <31.03%> (-6.13%)	:arrow_down:
integration	26.33% <27.58%> (-0.02%)	:arrow_down:
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