fix: ignore empty custom labels

Author: SergeyCP

src/smartinspect/protocols/cloud/cloud_protocol.py

@@ -275,7 +275,9 @@ def _parse_custom_labels_option(self, option: str) -> None:
                 name, value = pair
 
                 if (
-                        len(name) <= self._MAX_ALLOWED_CUSTOM_LABEL_COMPONENT_LENGTH
+                        name != ""
+                        and value != ""
+                        and len(name) <= self._MAX_ALLOWED_CUSTOM_LABEL_COMPONENT_LENGTH
                         and len(value) <= self._MAX_ALLOWED_CUSTOM_LABEL_COMPONENT_LENGTH
                 ):
                     self._custom_labels[name] = value