fix: MSSQL connection left in busy state after insert (#2171)

* Close cursor properly in `ODBCTransactionWrapper.execute_many`

* Remove `SET NOCOUNT ON` which might not be necessary anymore

* Revert

* Trigger CI

Author: seladb

tortoise/backends/odbc/client.py

@@ -186,8 +186,8 @@ def acquire_connection(self) -> ConnWrapperType:
     async def execute_many(self, query: str, values: list) -> None:
         async with self.acquire_connection() as connection:
             self.log.debug("%s: %s", query, values)
-            cursor = await connection.cursor()
-            await cursor.executemany(query, values)
+            async with connection.cursor() as cursor:
+                await cursor.executemany(query, values)
 
     async def begin(self) -> None:
         self._finalized = False