Update playbooks: Some OpenBSD 7.2 updates.

Ansible/update.yaml

@@ -96,7 +96,8 @@
         - name: Apply system patches
           command: syspatch
           register: syspatch
-          changed_when: syspatch.stdout_lines|length > 0
+          changed_when: syspatch.rc == 0
+          failed_when: syspatch.rc not in [0,2]
 
         - name: Update packages
           community.general.openbsd_pkg:
@@ -107,7 +108,8 @@
         - name: Update firmware
           command: fw_update -a
           register: fw_update
-          changed_when: fw_update.stdout_lines|length > 0
+          changed_when: |-
+            "fw_update: added none; updated none;" not in fw_update.stdout
 
         - name: Set reboot needed fact
           set_fact: