Strip a lot of newlines in configs

Author: miaow2

netbox_config_diff/compliance/utils.py

@@ -39,6 +39,8 @@ def __init__(self, choices, *args, **kwargs):
 
 
 def get_unified_diff(rendered_config: str, actual_config: str, device: str) -> str:
+    rendered_config = re.sub("\n{3,}", "\n", rendered_config)
+    actual_config = re.sub("\n{3,}", "\n", actual_config)
     diff = unified_diff(
         actual_config.splitlines(),
         rendered_config.strip().splitlines(),