pkg/hostagent: Remove ControlPath options from ssh execution in requirements on Windows

[norio-nomura]

Remove ControlMaster, ControlPath, and ControlPersist options, because Cygwin-based SSH clients do not support multiplexing when executing commands. References:
https://inbox.sourceware.org/cygwin/c98988a5-7e65-4282-b2a1-bb8e350d5fab@acm.org/T/
https://stackoverflow.com/questions/20959792/is-ssh-controlmaster-with-cygwin-on-windows-actually-possible
By removing these options:

• Avoids execution failures when the control master is not yet available.
• Prevents error messages such as:

  mux_client_request_session: read from master failed: Connection reset by peer
  ControlSocket ....sock already exists, disabling multiplexing
  mm_send_fd: sendmsg(2): Connection reset by peer\r\nmux_client_request_session: send fds failed\r\n

[norio-nomura]

I'm expecting this change to fix the following error:

{"time":"2025-10-30T09:08:36.9735373Z","status":{"running":true,"degraded":true,"errors":["failed to satisfy the optional requirement 1 of 2 "systemd must be available": systemd is required to run containerd, but does not seem to be available.\nMake sure that you use an image that supports systemd. If you do not want to run\ncontainerd, please make sure that both 'container.system' and 'containerd.user'\nare set to 'false' in the config file.\n; skipping further checks: stdout="", stderr="mm_send_fd: sendmsg(2): Connection reset by peer\r\nmux_client_request_session: send fds failed\r\n": failed to execute script "systemd must be available": stdout="", stderr="mm_send_fd: sendmsg(2): Connection reset by peer\r\nmux_client_request_session: send fds failed\r\n": exit status 255"],"sshLocalPort":55172}}

[AkihiroSuda]

Thanks

[norio-nomura]

Thanks! 🙏🏻