feat: sqlserver / mssql support (#505) #1108

Job	Run time
Checks	3m 4s
Checks	3m 4s
Docs	2m 16s
Docs	2m 16s
Run test with H2	4m 3s
Run test with H2	4m 3s
Run test with Postgres	5m 7s
Run test with Postgres	5m 7s
Run test with Postgres and JSONB payload	2m 23s
Run test with Postgres and JSONB payload	2m 23s
Run test with SQL Server	42s
Run test with SQL Server	4m 23s
Run tests with Yugabyte	4m 58s
Run tests with Yugabyte	4m 58s
	48m 47s

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