test failures lib/ssh

[duckfez]

At commit 97ba87c0e70661e1263631288b0cab41acebbbae:

# github.com/zmap/zgrab2/lib/ssh [github.com/zmap/zgrab2/lib/ssh.test]
./kex_test.go:28:39: not enough arguments in call to kex.Client
        have (packetConn, io.Reader, *handshakeMagics)
        want (packetConn, io.Reader, *handshakeMagics, *Config)
./kex_test.go:33:48: not enough arguments in call to kex.Server
        have (packetConn, io.Reader, *handshakeMagics, Signer)
        want (packetConn, io.Reader, *handshakeMagics, Signer, *Config)
./keys_test.go:29:27: cannot convert k (variable of type *dsaPublicKey) to type *"crypto/dsa".PublicKey
FAIL    github.com/zmap/zgrab2/lib/ssh [build failed]