android: support cross-compiling #6254

Job	Run time
collect-openssl-versions	9s
Build slim tarball	1m 8s
aarch64-linux: Cache V8 build	38m 57s
aarch64-darwin: with shared libraries	39m 4s
x86_64-linux: with shared libraries	38m 58s
x86_64-darwin: with shared libraries	39m 7s
aarch64-linux: with shared ${{ matrix.openssl.attr }} (${{ matrix.openssl.version }})	1s
	2h 37m 24s

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