Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools. This update was made based on information from https://repology.org/metapackage/python-caja/versions
Keep only the version atribute in derivations, with the full version string of the package. This will make it easier to write a script for automatic updating of the packages using the update-source-version command from common-updater-scripts.