Tests

feat(testcontainers): refactor vshard and cartridge testcontainers #198

Job	Run time
tests-unit	4m 15s
tests-box-integration (2.11.8-ubuntu20.04)	11m 24s
tests-box-integration (3.5.0)	16m 56s
tests-crud-integration (3.5.0)	6m 54s
tests-crud-integration (2.11.8-ubuntu20.04)	21m 30s
	1h 0m 59s

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