website/docs: improve service account docs

[dominic-r]

Closes #18710

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.22%. Comparing base (a654a4c) to head (940ee34).
⚠️ Report is 2 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #22145      +/-   ##
==========================================
- Coverage   93.24%   93.22%   -0.03%     
==========================================
  Files        1027     1027              
  Lines       59598    59598              
  Branches      400      400              
==========================================
- Hits        55571    55558      -13     
- Misses       4027     4040      +13     

Flag	Coverage Δ
conformance	36.75% <ø> (+<0.01%)	⬆️
e2e	41.95% <ø> (-0.03%)	⬇️
integration	32.66% <ø> (-0.50%)	⬇️
rust	0.00% <ø> (ø)
unit	92.18% <ø> (+<0.01%)	⬆️
unit-migrate	92.21% <ø> (+0.01%)	⬆️

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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-940ee34b0be1704207a0d270c53630dc5cb51501
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-940ee34b0be1704207a0d270c53630dc5cb51501

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

[tanberry]

Leet's leave this as Draft for now... I already am working on the docs about creating a Service account (the labels have changed), so leet me get that merged for the release and then let's go back and pick out the goodness form this one that we still want to add.

[dominic-r]

Agree