sources/kerberos: update to new python-kadmin-rs

[rissson]

Details

TODO:

• add migration to remove other type

---

Checklist

• Local tests pass (ak test authentik/)
• 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

• The code has been formatted (make web)

If applicable

• The documentation has been updated
• The documentation has been formatted (make docs)

[netlify]

✅ Deploy Preview for authentik-docs canceled.

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🔨 Latest commit	5bb5c3b
🔍 Latest deploy log	https://app.netlify.com/projects/authentik-docs/deploys/6908bb1fe845850008a33733

[netlify]

✅ Deploy Preview for authentik-integrations canceled.

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🔨 Latest commit	5bb5c3b
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[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.99%. Comparing base (a573a72) to head (5bb5c3b).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
authentik/sources/kerberos/models.py	70.00%	3 Missing ⚠️
authentik/sources/kerberos/signals.py	50.00%	1 Missing ⚠️

Additional details and impacted files

@@                 Coverage Diff                 @@
##           version-2025.10   #17862      +/-   ##
===================================================
+ Coverage            92.93%   92.99%   +0.06%     
===================================================
  Files                  869      869              
  Lines                47955    47955              
===================================================
+ Hits                 44568    44597      +29     
+ Misses                3387     3358      -29     

Flag	Coverage Δ
e2e	45.26% <41.66%> (+0.08%)	⬆️
integration	23.19% <41.66%> (ø)
unit	91.08% <66.66%> (+<0.01%)	⬆️
unit-migrate	91.12% <66.66%> (ø)

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[github-actions]

authentik PR Installation instructions

Instructions for docker-compose

Add the following block to your .env file:

AUTHENTIK_IMAGE=ghcr.io/goauthentik/dev-server
AUTHENTIK_TAG=gh-5bb5c3bae57ff7bba8416f1c6f6d1e43c73ba448
AUTHENTIK_OUTPOSTS__CONTAINER_IMAGE_BASE=ghcr.io/goauthentik/dev-%(type)s:gh-%(build_hash)s

Afterwards, run the upgrade commands from the latest release notes.

Instructions for Kubernetes

Add the following block to your values.yml file:

authentik:
    outposts:
        container_image_base: ghcr.io/goauthentik/dev-%(type)s:gh-%(build_hash)s
global:
    image:
        repository: ghcr.io/goauthentik/dev-server
        tag: gh-5bb5c3bae57ff7bba8416f1c6f6d1e43c73ba448

Afterwards, run the upgrade commands from the latest release notes.