blueprints: fix error when imported blueprint is invalid

[BeryJu]

closes #5413

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -36.80 ⚠️

Comparison is base (5830781) 90.37% compared to head (564f532) 53.56%.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #5414       +/-   ##
===========================================
- Coverage   90.37%   53.56%   -36.80%     
===========================================
  Files         506      506               
  Lines       25944    25945        +1     
===========================================
- Hits        23443    13895     -9548     
- Misses       2501    12050     +9549     

Flag	Coverage Δ
e2e	51.85% <0.00%> (+3.51%)	⬆️
integration	26.29% <0.00%> (?)
unit	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
authentik/blueprints/api.py	66.67% <0.00%> (-20.43%)	⬇️

... and 381 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Do you have feedback about the report comment? Let us know in this issue.

[nogweii]

Manually applying this fix in my container:

podman cp authentik:/.../api.py api.py
vim api.py
podman cp api.py authentik:/.../api.py
podman exec -it authentik bash
kill -HUP $(pidof /usr/local/bin/python3.11)

And it works! Thanks for the fix. 😄

[nogweii]

Hm, this leads to a new error which breaks the admin UI's list of blueprints... which, ah-ha, has already been fixed: 04cc781