crypto: accept key data in crypto.diffieHellman() and cleanup DH jobs #5129

Job	Run time
Build slim tarball	2m 7s
x86_64-darwin: with shared libraries	35m 41s
aarch64-darwin: with shared libraries	22m 1s
aarch64-linux: with shared libraries	19m 17s
x86_64-linux: with shared libraries	23m 38s
	1h 42m 44s

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