Persistent connection timer changes (#27272)

*  Add command_timeout timer that defines the amount
   of time to wait for a command or RPC call before
   timing out.
*  Remove connect_retries and connect_interval configuration
   varaible and replace it with connect_retry_timeout to control
   the timeout value of connection to local scoket.
*  Make required changes to netowrk action plugins and relevant
   network files in module_utils.
*  Required documentation changes.

lib/ansible/module_utils/nxos.py

@@ -57,8 +57,7 @@ nxos_argument_spec = {
 
 # Add argument's default value here
 ARGS_DEFAULT_VALUE = {
-    'transport': 'cli',
-    'timeout': 10
+    'transport': 'cli'
 }