cli: fix missing config lock

Fixes: #1135

Author: Fizzadar

src/pyinfra_cli/cli.py

@@ -773,6 +773,8 @@ def _prepare_exec_operations(state, config, operations):
 def _prepare_deploy_operations(state, config, operations):
     # Number of "steps" to make = number of files * number of hosts
     for i, filename in enumerate(operations):
+        config.lock_current_state()
+
         _log_styled_msg = click.style(filename, bold=True)
         logger.info("Loading: {0}".format(_log_styled_msg))