Implement `roles.delete`, `databases.drop` & `databases.configured.disconnect` endpoints #1574

Job	Run time
Check for file changes requiring all backend tests	11s
Check for file changes requiring front end checks	11s
Check for file changes requiring python linter	10s
Check for file changes requiring python tests	11s
Check for file changes requiring SQL tests	12s
Find unused code	7s
Run Python linter	8s
Run Python tests (3.9-bookworm, 13)	12m 5s
Run Python tests (3.9-bookworm, 14)	11m 58s
Run Python tests (3.9-bookworm, 15)	11m 29s
Run Python tests (3.9-bookworm, 16)	11m 44s
Run Python tests (3.10-bookworm, 13)	11m 23s
Run Python tests (3.10-bookworm, 14)	12m 18s
Run Python tests (3.10-bookworm, 15)	11m 19s
Run Python tests (3.10-bookworm, 16)	11m 40s
Run Python tests (3.11-bookworm, 13)	10m 45s
Run Python tests (3.11-bookworm, 14)	11m 52s
Run Python tests (3.11-bookworm, 15)	11m 31s
Run Python tests (3.11-bookworm, 16)	11m 21s
Run Python tests (3.12-bookworm, 13)	12m 1s
Run Python tests (3.12-bookworm, 14)	12m 5s
Run Python tests (3.12-bookworm, 15)	12m 26s
Run Python tests (3.12-bookworm, 16)	11m 40s
Audit front end code	0s
Check front end code format	0s
Run front end linter	0s
Run front end tests	0s
Check front end types	0s
Run SQL tests (13)	18s
Run SQL tests (14)	17s
Run SQL tests (15)	17s
Run SQL tests (16)	21s
matrix_tests	1s
	3h 10m 1s

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