Tests

feat(testcontainers): refactor vshard and cartridge containers #176

Job	Run time
tests-crud-integration (2.11.8-ubuntu20.04)	10m 2s
tests-box-integration (2.11.8-ubuntu20.04)	19m 29s
tests-crud-integration (3.5.0)	4m 21s
tests-box-integration (3.5.0)	11m 51s
tests-unit	3m 41s
	49m 24s

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