Support building ext in private release #78013

Job	Run time
Mirror third party dependencies	1m 5s
Collect information about PR and source	10s
License and format	1m 30s
Find build cache	9s
Static analysis with clang on diff	23s
Build OneFlow (cu116)	14s
Build OneFlow (cpu)	14s
Build OneFlow (cpu-asan-ubsan)	9s
Build OneFlow (cpu-tsan)	18s
Build OneFlow (llvm15)	14s
Find test cache	12s
Find test cache (distributed)	0s
Test suite (cuda-module)	40s
Test suite (cuda-misc)	44s
Test suite (cuda-speed-test)	47s
Test suite (cpu-module)	47s
Test suite (cpu-misc)	1m 10s
Distributed test suite	1s
	8m 47s

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