[stable-2.9] Fix: nmcli bridge-slave fails with error (#74125)

This commit fixes the error for adding bridge
slaves: nmcli bridge-slave returns "Error: invalid or not allowed setting 'bridge-port'

This fix is related to #42460, #54617, and #68065

* changelog

changelogs/fragments/74125-backport_nmcli_module-slave_bridge_error.yml

@@ -0,0 +1,2 @@
+minor_changes:
+- nmcli - fix the slaving of bridge interfaces (https://github.com/ansible/ansible/pull/74125).

lib/ansible/modules/net_tools/nmcli.py

@@ -1103,8 +1103,9 @@ class Nmcli(object):
         elif self.conn_name is not None:
             cmd.append(self.conn_name)
 
+        if self.master is not None:
+            cmd.extend(['master', self.master])
         options = {
-            'master': self.master,
             'bridge-port.path-cost': self.path_cost,
             'bridge-port.hairpin': self.bool_to_string(self.hairpin),
             'bridge-port.priority': self.slavepriority,
@@ -1119,8 +1120,9 @@ class Nmcli(object):
     def modify_connection_bridge_slave(self):
         # format for modifying bond-slave interface
         cmd = [self.nmcli_bin, 'con', 'mod', self.conn_name]
+        if self.master is not None:
+            cmd.extend(['master', self.master])
         options = {
-            'master': self.master,
             'bridge-port.path-cost': self.path_cost,
             'bridge-port.hairpin': self.bool_to_string(self.hairpin),
             'bridge-port.priority': self.slavepriority,