Update network configurations and add new host variables

- Modified network interface settings for gw-mbr.oopen.de, changing IP addresses and adding an alias for IPMI.
- Refactored network interface configuration for o28.oopen.de, consolidating and updating device settings, including bridge configurations and DNS settings.
- Added new user 'farina' to samba_user in zapata.opp.netz.yml.
- Updated hosts file to include new entries for ak-plan.oopen.de and adjusted existing entries for clarity.
- Created new host variable files for ak-plan.oopen.de, cl-ndm.oopen.de, and psono-ndm.oopen.de with comprehensive configurations for systemd-resolved and cron jobs.

host_vars/zapata.opp.netz.yml

@@ -297,6 +297,12 @@ samba_user:
       - buero
     password: '20-printer-18'
 
+  - name: farina
+    groups:
+      - buero
+      - beratung
+    password: 'ADB_far!na_26'
+
   - name: hanna
     groups:
       - buero