use actual ssh executable as it might not be ssh

lib/ansible/plugins/connection/ssh.py

@@ -677,7 +677,7 @@ class Connection(ConnectionBase):
         # only when using ssh. Otherwise we can send initial data straightaway.
 
         state = states.index('ready_to_send')
-        if b'ssh' in cmd and sudoable:
+        if to_bytes(self.get_option('ssh_executable')) in cmd and sudoable:
             if self._play_context.prompt:
                 # We're requesting escalation with a password, so we have to
                 # wait for a password prompt.