Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools. This update was made based on information from https://repology.org/metapackage/python3.7-lark-parser/versions
This bumps lark-parser to a released version that doesn't loop forever and consumes all memory on certain grammars. erezsh/lark redirects now to lark-parser/lark, so also update homepage.