feat: SQL Server / mssql dialect support #1064

Job	Run time
Run test with Postgres	3m 44s
Run test with Postgres	6m 9s
Docs	1m 19s
Docs	1m 23s
Checks	1m 14s
Checks	4m 6s
Run test with H2	3m 15s
Run test with H2	5m 11s
Run test with Postgres and JSONB payload	1m 38s
Run test with Postgres and JSONB payload	1m 53s
Run test with SQL Server	4m 5s
Run test with SQL Server	3m 55s
Run tests with Yugabyte	4m 47s
Run tests with Yugabyte	6m 13s
	48m 52s

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