sql/internal/sqlx: add Builder.WrapErr (#2294) #925

Job	Run time
integration-cockroach	1m 4s
integration-maria102	58s
integration-maria103	58s
integration-mysql56	1m 13s
integration-maria107	1m 3s
integration-mysql57	1m 5s
integration-mysql8	1m 27s
integration-postgres10	1m 22s
integration-postgres11	1m 32s
integration-postgres12	1m 32s
integration-postgres13	1m 21s
integration-postgres15	1m 33s
integration-postgres14	1m 19s
integration-postgres-ext-postgis	1m 24s
integration-sqlite	33s
integration-tidb5	1m 42s
integration-tidb6	1m 40s
	21m 46s

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