Bump every PyPI-resolvable dependency in one or many repos' pyproject.toml files to its newest version on PyPI, preserving comments and formatting via a tomlkit round-trip edit, while safely leaving workspace/intra-repo members, CVE-pinned security floors, and complex (direct-URL/VCS or marker-qualified) specs untouched. Use when the user asks to modernize, refresh, or bump dependencies to the latest version across one repository or a whole fleet of repositories.
