v1.5.3

Fix compatibility with modules, fmt, and update dependencies

This release fixes compatibility issues with C++ modules. It also fixes compatibility issues caused by fmt deprecating a header.
Additionally both dependencies (catch2, and fmt) were updated to the latest version.
However, note that compatibility with older versions should still work, if those dependencies are included through the parent project.

Thanks for the contributions

• parser.hpp: make compatible with modules by @autoantwort in #16
• Fix compatibility with fmt 12.2.0 by @xiaozhuai in #17