fix: whitespace on empty line removed

Signed-off-by: Paul Horton <phorton@sonatype.com>

Author: madpah

cyclonedx/model/component.py

@@ -94,7 +94,7 @@ def set_license(self, license_str: str):
     def to_package_url(self) -> PackageURL:
         """
         Return a PackageURL representation of this Component.
-        
+
         :return: PackageURL
         """""
         return PackageURL(