Fix crdb sql-introspection tests and pin docker image versions #12176

Job	Run time
Test vitess_8_0 (graphql) on Linux	1m 56s
Test vitess_8_0 (json) on Linux	1m 59s
Test postgres15 (graphql) on Linux	15m 5s
Test postgres15 (json) on Linux	12m 54s
Test mssql_2022 (graphql) on Linux	10m 28s
Test mssql_2022 (json) on Linux	10m 45s
Test mongodb_4_2 (graphql) on Linux	4m 9s
Test mongodb_4_2 (json) on Linux	4m 36s
Test cockroach_23_1 (graphql) on Linux	31m 43s
Test cockroach_23_1 (json) on Linux	30m 28s
Test cockroach_22_2 (graphql) on Linux	21m 43s
Test cockroach_22_2 (json) on Linux	23m 31s
Test cockroach_22_1_0 (graphql) on Linux	15m 53s
Test cockroach_22_1_0 (json) on Linux	25m 21s
	3h 30m 31s

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