Backport to branch(3.12): Reduce the number of concurrent DDLs from 10 to 1 for Cosmos DB in the integration tests #4057

Job	Run time
Build check for 'Getting Started' example project	31s
Build check for 'Getting Started' example project for Kotlin	1m 24s
Gradle check	3m 59s
Lint dockerfiles	42s
Cassandra 3.0 integration test	8m 1s
Cassandra 3.11 integration test	8m 39s
Cosmos DB integration test	22m 8s
DynamoDB integration test	12m 50s
MariaDB 10 integration test	3m 48s
MySQL 5.7 integration test	4m 12s
MySQL 8.0 integration test	5m 42s
MySQL 8.1 integration test	6m 21s
Oracle 18 integration test	7m 49s
Oracle 21 integration test	10m 38s
Oracle 23 integration test	10m 18s
PostgreSQL 12 integration test	2m 39s
PostgreSQL 13 integration test	3m 19s
PostgreSQL 14 integration test	3m 10s
PostgreSQL 15 integration test	2m 44s
SQLite 3 integration test	4m 58s
SQL Server 2017 integration test	4m 49s
SQL Server 2019 integration test	5m 7s
SQL Server 2022 integration test	5m 29s
Multi-storage integration test	3m 5s
ScalarDB Server integration test	6m 14s
	2h 28m 36s

Provide feedback