Change type of `Column.Unique` from `*bool` to `bool` #2541

Job	Run time
check ledger	4s
type generation	12s
dead code check	15s
examples (pg: 14.8, schema: public)	32s
license check	6s
lint	10s
examples (pg: 14.8, schema: non_public)	30s
examples (pg: 15.3, schema: public)	29s
test (pg: 14.8, schema: public)	47s
examples (pg: 15.3, schema: non_public)	29s
test (pg: 14.8, schema: non_public)	46s
validate examples JSON	19s
examples (pg: 16.4, schema: public)	29s
test (pg: 15.3, schema: public)	54s
examples (pg: 16.4, schema: non_public)	27s
test (pg: 15.3, schema: non_public)	54s
examples (pg: 17.0, schema: public)	27s
test (pg: 16.4, schema: public)	50s
examples (pg: 17.0, schema: non_public)	29s
test (pg: 16.4, schema: non_public)	49s
examples (pg: latest, schema: public)	28s
test (pg: 17.0, schema: public)	49s
examples (pg: latest, schema: non_public)	30s
test (pg: 17.0, schema: non_public)	50s
test (pg: latest, schema: public)	51s
test (pg: latest, schema: non_public)	55s
release	0s
	14m 21s

Provide feedback