[hotfix][oceanbase] Reduce OceanBase container memory for CI #37

Job	Run time
License Check	4m 35s
Common Unit Tests / test (11, generic, core)	13m 8s
Common Unit Tests 2.x / test (11, 2.2.0, core)	12m 46s
Pipeline Unit Tests / test (11, generic, doris, elasticsearch, fluss, hudi, iceberg, kafka, maxcompute, mysql-pipeline,...	35m 50s
Pipeline Connectors Unit Tests 2.x / test (11, 2.2.0, doris, elasticsearch, fluss, iceberg, kafka, maxcompute, mysql-pipeline, oceanba...	36m 24s
Source E2E Tests / test (11, 1.20.3, source_e2e)	28m 2s
Source Unit Tests / test (11, generic, postgres-source, oceanbase-source, tidb, vitess)	58m 57s
Source Unit Tests / test (11, generic, oracle, sqlserver)	46m 34s
Source Unit Tests / test (11, generic, db2, mongodb)	43m 37s
Source Unit Tests 2.x / test (11, 2.2.0, db2, mongodb)	34m 4s
Source Unit Tests 2.x / test (11, 2.2.0, mysql-source)	41m 22s
Pipeline E2E Tests (4-Parallelism) / test (11, 1.20.3, pipeline_e2e)	1h 20m 56s
Source Unit Tests 2.x / test (11, 2.2.0, postgres-source, oceanbase-source, tidb, vitess)	45m 48s
Pipeline E2E Tests 2.x (4-Parallelism) / test (11, 2.2.0, pipeline_e2e)	1h 3m 26s
Source Unit Tests / test (11, generic, mysql-source)	44m 55s
Pipeline E2E Tests (1-Parallelism) / test (11, 1.20.3, pipeline_e2e)	1h 26m 2s
Pipeline E2E Tests 2.x (1-Parallelism) / test (11, 2.2.0, pipeline_e2e)	1h 9m 50s
Source Unit Tests 2.x / test (11, 2.2.0, oracle, sqlserver)	39m 56s
	13h 6m 12s

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