[READY] v2.x - Allow SP certificates to be OpenSSL::X509::Certificate / private_key to be OpenSSL::PKey::PKey #407

Job	Run time
rubocop	13s
Unit test (ubuntu-20.04, 3)	1m 51s
Unit test (ubuntu-20.04, 3.1)	1m 43s
Unit test (ubuntu-20.04, 3.2)	1m 44s
Unit test (ubuntu-20.04, 3.3)	1m 49s
Unit test (ubuntu-20.04, jruby-9.4)	2m 29s
Unit test (ubuntu-20.04, truffleruby)	3m 44s
Unit test (macos-latest, 3)	1m 40s
Unit test (macos-latest, 3.1)	1m 26s
Unit test (macos-latest, 3.2)	1m 42s
Unit test (macos-latest, 3.3)	1m 38s
Unit test (macos-latest, jruby-9.4)	2m 13s
Unit test (macos-latest, truffleruby)	2m 41s
Unit test (windows-latest, 3)	3m 25s
Unit test (windows-latest, 3.1)	2m 55s
Unit test (windows-latest, 3.2)	3m 26s
Unit test (windows-latest, 3.3)	4m 44s
finish	3s
	39m 26s

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