chore: temporarily skip show mac sanity

Author: cyw233

tests/common/plugins/sanity_check/__init__.py

@@ -130,6 +130,10 @@ def _is_voq_chassis(duthosts):
         if 'check_mac_entry_count' in filtered_check_items:
             filtered_check_items.remove('check_mac_entry_count')
 
+    # Temporarily disable check_mac_entry_count sanity due to a known issue. Will be enabled after the issue is fixed.
+    if 'check_mac_entry_count' in filtered_check_items:
+        filtered_check_items.remove('check_mac_entry_count')
+
     return filtered_check_items