Fix agent deployment instructions for HP-UX and Solaris

[s-ocando]

Wazuh	Rev
4.4.0	4400

Description
We must adapt the agent deployment instructions for HP-UX and Solaris, taking into account that we cannot use deployment variables.

Field 4 "Wazuh server address" and 5 "Assign a name and a group to the agent" should not be available. Otherwise, users can enter the server address and add groups without realizing that it has no effect.

On the other hand, the WAZUH_AGENT_NAME is included in the installation command and it should not be (see the screenshot below).

We should also change the title of field 6 from "Install and enroll the agent" to "Install the agent", or include the instructions to enroll the agent. See Installing Wazuh agents on HP-UX endpoints.

We should also adapt the text "You can use this command to install and enroll the Wazuh agent in one or more hosts." accordingly.

If there are no enrollment instructions available, we should add a link to the enrollment section. Currently, there's only a link to the Checking connection with the Wazuh manager section.

I also suggest moving the "Might require some extra installation steps" from the "Choose the version" to the "Install and enroll the agent" field.

Screenshots