fix in_network test (#429)

Co-authored-by: Sagar Paul <sagpaul@redhat.com>

Author: poyynt

plugins/plugin_utils/base/ipaddress_utils.py

@@ -60,9 +60,18 @@ def wrapper(*args, **kwargs):
     return wrapper
 
 
+def _get_network_version(network):
+    """
+    Python 3.14 changes the _version attribute to version, so we have to try both.
+    """
+    if hasattr(network, "_version"):
+        return network._version
+    return network.version
+
+
 def _is_subnet_of(network_a, network_b):
     try:
-        if network_a._version != network_b._version:
+        if _get_network_version(network_a) != _get_network_version(network_b):
             return False
         return (
             network_b.network_address <= network_a.network_address