feat(databricks): bump github.com/databricks/databricks-sql-go from 1.5.7 to 1.6.0 #705

Job	Run time
matrix test (.)	2m 7s
matrix test (sqlconnect/internal)	47s
matrix test (sqlconnect/internal/bigquery)	2m 9s
matrix test (sqlconnect/internal/databricks)	8m 45s
matrix test (sqlconnect/internal/mysql)	1m 16s
matrix test (sqlconnect/internal/postgres)	52s
matrix test (sqlconnect/internal/redshift)	6m 8s
matrix test (sqlconnect/internal/snowflake)	1m 44s
matrix test (sqlconnect/internal/trino)	40s
coverage	24s
all-tests	4s
	24m 56s

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