[k8s] GPU Feature discovery label formatter #14877

Job	Run time
python-test (3.8, tests/unit_tests)	6m 19s
python-test (3.8, tests/test_api.py)	4m 15s
python-test (3.8, tests/test_cli.py)	4m 28s
python-test (3.8, tests/test_config.py)	3m 42s
python-test (3.8, tests/test_global_user_state.py)	3m 47s
python-test (3.8, tests/test_jobs.py)	4m 10s
python-test (3.8, tests/test_list_accelerators.py)	4m 33s
python-test (3.8, tests/test_optimizer_dryruns.py)	6m 16s
python-test (3.8, tests/test_optimizer_random_dag.py)	4m 50s
python-test (3.8, tests/test_storage.py)	4m 7s
python-test (3.8, tests/test_wheels.py)	3m 53s
python-test (3.8, tests/test_jobs_and_serve.py)	3m 52s
python-test (3.8, tests/test_yaml_parser.py)	3m 48s
	58m 0s

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