website/docs: install-config: fix dump_config command (cherry-pick #18659 to version-2025.10)

[authentik-automation]

Cherry-pick of #18659 to version-2025.10 branch.

Original PR: #18659
Original Author: @dominic-r
Cherry-picked commit: fa579c2

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.95%. Comparing base (f6dcdd0) to head (17ea937).
⚠️ Report is 2 commits behind head on version-2025.10.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@                 Coverage Diff                 @@
##           version-2025.10   #18671      +/-   ##
===================================================
+ Coverage            92.67%   92.95%   +0.28%     
===================================================
  Files                  869      869              
  Lines                48143    48143              
===================================================
+ Hits                 44618    44753     +135     
+ Misses                3525     3390     -135     

Flag	Coverage Δ
e2e	45.10% <ø> (+1.16%)	⬆️
integration	23.17% <ø> (+<0.01%)	⬆️
unit	91.06% <ø> (+<0.01%)	⬆️
unit-migrate	91.11% <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-17ea93758f91e1d8fcf53659f8ad26bf7f99abc2
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-17ea93758f91e1d8fcf53659f8ad26bf7f99abc2

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