[Config] Update the 'Security hardening guide' to using a new config

[andreyaksenov]

Previous step: #3945
Feedback: #3959

Product: Tarantool
Since: 3.0
Root document: https://www.tarantool.io/en/enterprise_doc/security/
SME: @ Totktonada

Details

Currently, box.cfg examples are used.

P.S. Some environment variables should also be updated (comparison table).

Main steps

• Create the Connections topic in the Configuration section (see also Connections and Authentication). The structure of this topic might be:
  • Overview (iproto, connectors, replication, sharding)
  • Listen URI (ip+port, unix socket)
  • Advertise URI (domain names can be used)
  • SSL (Traffic encryption will be moved here, mention certificate reloading)
• Create the Authentication topic in the Configuration section and move the info from the Access control section.
  • Add corresponding options to reference.

[andreyaksenov]

• https://www.tarantool.io/en/doc/latest/concepts/configuration/configuration_connections/#securing-connections-with-ssl
• https://www.tarantool.io/en/doc/latest/concepts/configuration/configuration_authentication/
• https://www.tarantool.io/en/doc/latest/enterprise/security/