Add back extension suffix for portable lib shared object in pip wheel… #4651

Job	Run time
build-benchmark-app / macos-job	23m 12s
build-demo-ios / macos-job	15m 39s
build-frameworks-ios / macos-job	27m 24s
upload-demo-ios	19s
test-demo-ios / mobile-job (ios)	15m 4s
upload-frameworks-ios	22s
	1h 22m 0s

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