[CICD] Add MetaX image build workflow and Fix containers #170

Job	Run time
check_docker_changes	5s
MetaX tests / checkout_and_config	5s
MetaX tests / cli_validation / functional_test_cli	34s
CUDA tests	0s
MetaX tests / unit_tests (c550) / unit-c550	3m 30s
MetaX tests / functional_tests_train / functional_test_train (c550, train, qwen3, 0_6b_metax)	3m 50s
MetaX tests / functional_tests_serve	-1s
MetaX tests / functional_tests_inference	-1s
MetaX tests / functional_tests_benchmark	-1s
MetaX tests / functional_tests_hetero_train	-1s
MetaX tests / all_tests_complete	3s
all_tests	4s
	8m 7s

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