feat: ssh tunnel shortcuts

[pgierz]

No description provided.

[pgierz]

This pull request updates the ssh_tunnel.py script to support forwarding ports for both Dask and Prefect dashboards. The changes include adding new options for specifying local and remote ports for Prefect, modifying the gateway server hostname, and updating the SSH command and output messages accordingly.

Enhancements to SSH Tunnel Script:

• src/pymorize/ssh_tunnel.py:
  • Added options for specifying local and remote ports for Prefect (--local-prefect-port and --remote-prefect-port).
  • Changed the default gateway server hostname from levante2.dkrz.de to levante1.dkrz.de.
  • Updated the SSH command to include port forwarding for Prefect in addition to Dask.
  • Modified the output messages to reflect the new port forwarding setup and provide URLs for accessing both Dask and Prefect dashboards.