cli: Update dependencies and bump to 0.12.0
Updates tree-sitter to most recent version, creates a new version of radicle-cli so that downstream, e.g. radicle-tui may depend on that.
Updates tree-sitter to most recent version, creates a new version of radicle-cli so that downstream, e.g. radicle-tui may depend on that.
Do not update thiserror.