Add and update host variable files for various servers

- Created new host variable file for `iam-nd.oopen.de` with network and cron configurations.
- Created new host variable file for `test.mariadb.oopen.de` with cron environment entries.
- Updated `file-km.anw-km.netz.yml.BAK.2026-04-18-1218` with network interface configurations and DNS settings.
- Modified `gw-campus.oopen.de.yml` to change device names for network interfaces.
- Updated `nd-archiv.warenform.de.yml`, `nd-live.warenform.de.yml`, `nd.warenform.de.yml`, `web0.warenform.de.yml`, `web1.warenform.de.yml`, and `web2.warenform.de.yml` to replace `wkhtmltopdf` with `weasyprint` in the list of extra packages.
- Updated `o26.oopen.de.yml` to correct SSH key destination and change backup job script path.
- Added `iam-nd.oopen.de` to the hosts file for server management.

host_vars/test.mariadb.oopen.de.yml

@@ -0,0 +1,56 @@
+---
+
+# ---
+# vars used by role 'firewall'
+# ---
+
+# ---
+# vars used by roles/ansible_dependencies
+# ---
+
+
+# ---
+# vars used by roles/common/tasks/basic.yml
+# ---
+
+
+# ---
+# vars used by cron.yml
+# ---
+
+#cron_env_entries: []
+cron_env_entries:
+  - name: PATH
+    job: /root/bin/admin-stuff:/root/bin:/usr/local/php/bin:/usr/local/apache2/bin:/sbin:/bin:/usr/local/dovecot/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+
+  - name: SHELL
+    job: /bin/bash
+
+
+# ---
+# vars used by apt.yml
+# ---
+
+
+# ---
+# vars used by roles/common/tasks/sshd.yml
+# ---
+
+
+# ---
+# vars used by roles/common/tasks/users.yml
+# ---
+
+
+# ---
+# vars used by roles/common/tasks/sudoers.yml
+# ---
+
+
+# ==============================
+
+
+# ---
+# vars used by scripts/reset_root_passwd.yml
+# ---
+