Allow deleting a UserGroup (except for the default one)

[ychiucco]

closes #1845
closes #1871

Checklist before merging

• I added an appropriate entry to CHANGELOG.md
• I added logging to new code - if appropriate.
• I merged main into the current branch.

[github-actions]

Benchmark comparison

GET /api/alive/

User	Time current (ms)	Time main (ms)	Ratio current/main	Size current (Kb)	Size main (Kb)
vanilla	0.9	0.9	1.00	0.0	0.0
power	0.8	0.8	1.00	0.0	0.0
dataset	0.8	0.8	1.00	0.0	0.0
project	0.8	0.8	1.00	0.0	0.0
job	0.8	0.8	1.00	0.0	0.0

GET /api/v2/dataset/

User	Time current (ms)	Time main (ms)	Ratio current/main	Size current (Kb)	Size main (Kb)
vanilla	11.6	10.4	1.12	0.6	0.6
power	421.9	394.0	1.07	381.8	381.8
dataset	160.2	149.4	1.07	142.0	142.0
project	51.3	46.8	1.10	49.7	49.7
job	30.8	27.5	1.12	34.4	34.4

GET /api/v2/job/

User	Time current (ms)	Time main (ms)	Ratio current/main	Size current (Kb)	Size main (Kb)
vanilla	8.1	6.6	1.23	2.2	2.2
power	147.3	138.3	1.07	652.4	652.4
dataset	145.6	137.4	1.06	905.6	905.6
project	50.8	47.3	1.07	283.9	283.9
job	40.9	37.6	1.09	225.0	225.0

GET /api/v2/project/

User	Time current (ms)	Time main (ms)	Ratio current/main	Size current (Kb)	Size main (Kb)
vanilla	8.8	8.5	1.04	0.1	0.1
power	8.8	7.9	1.11	0.1	0.1
dataset	8.4	7.6	1.11	0.1	0.1
project	10.4	9.7	1.07	2.3	2.3
job	8.7	7.8	1.12	0.1	0.1

GET /api/v2/task/

User	Time current (ms)	Time main (ms)	Ratio current/main	Size current (Kb)	Size main (Kb)
vanilla	7.2	6.4	1.12	0.8	0.8
power	6.8	6.4	1.06	0.8	0.8
dataset	7.3	6.7	1.09	0.8	0.8
project	6.9	6.4	1.08	0.8	0.8
job	6.9	6.3	1.10	0.8	0.8

GET /api/v2/workflow/

User	Time current (ms)	Time main (ms)	Ratio current/main	Size current (Kb)	Size main (Kb)
vanilla	12.9	11.7	1.10	0.8	0.8
power	27.7	25.3	1.09	29.4	29.4
dataset	22.0	19.4	1.13	16.9	16.9
project	28.5	25.5	1.12	21.2	21.2
job	13.1	11.5	1.14	0.8	0.8

POST /api/v2/project/3/dataset/402/images/query/

User	Time current (ms)	Time main (ms)	Ratio current/main	Size current (Kb)	Size main (Kb)
dataset	157.8	150.1	1.05	275.1	275.1

GET /auth/current-user/

User	Time current (ms)	Time main (ms)	Ratio current/main	Size current (Kb)	Size main (Kb)
vanilla	5.8	5.3	1.09	0.2	0.2
power	6.0	5.1	1.18	0.2	0.2
dataset	6.2	5.1	1.22	0.2	0.2
project	5.2	5.4	0.96	0.2	0.2
job	5.8	5.1	1.14	0.1	0.1

POST /auth/token/login/

User	Time current (ms)	Time main (ms)	Ratio current/main	Size current (Kb)	Size main (Kb)
dataset	264.3	262.9	1.01	0.2	0.2

[github-actions]

Coverage report

Click to see where and how coverage changed

File	Statements	Missing	Coverage	Coverage (new stmts)	Lines missing
fractal_server/app/routes/auth
_aux_auth.py
group.py
fractal_server/app/schemas/v2
task_collection.py
Project Total

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