[hotfix][oceanbase] Reduce OceanBase container memory for CI #38

Job	Run time
Pipeline Unit Tests / test (11, generic, doris, elasticsearch, fluss, hudi, iceberg, kafka, maxcompute, mysql-pipeline,...	34m 48s
Common Unit Tests 2.x / test (11, 2.2.0, core)	13m 23s
Source Unit Tests 2.x / test (11, 2.2.0, oracle, sqlserver)	38m 19s
Source Unit Tests / test (11, generic, mysql-source)	47m 1s
Common Unit Tests / test (11, generic, core)	13m 22s
Source Unit Tests / test (11, generic, postgres-source, oceanbase-source, tidb, vitess)	58m 57s
Source Unit Tests / test (11, generic, oracle, sqlserver)	44m 35s
Source Unit Tests 2.x / test (11, 2.2.0, postgres-source, oceanbase-source, tidb, vitess)	46m 5s
Pipeline Connectors Unit Tests 2.x / test (11, 2.2.0, doris, elasticsearch, fluss, iceberg, kafka, maxcompute, mysql-pipeline, oceanba...	20m 0s
Source Unit Tests 2.x / test (11, 2.2.0, db2, mongodb)	35m 4s
Source Unit Tests / test (11, generic, db2, mongodb)	44m 11s
Source Unit Tests 2.x / test (11, 2.2.0, mysql-source)	42m 14s
Source E2E Tests / test (11, 1.20.3, source_e2e)	28m 39s
License Check	4m 30s
Pipeline E2E Tests 2.x (4-Parallelism) / test (11, 2.2.0, pipeline_e2e)	55m 58s
Pipeline E2E Tests (4-Parallelism) / test (11, 1.20.3, pipeline_e2e)	1h 22m 26s
Pipeline E2E Tests (1-Parallelism) / test (11, 1.20.3, pipeline_e2e)	1h 18m 49s
Pipeline E2E Tests 2.x (1-Parallelism) / test (11, 2.2.0, pipeline_e2e)	1h 2m 24s
	12h 30m 45s

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