Log Message:
catch2: update to 2.13.1.

Improvements

    ParseAndAddCatchTests handles CMake v3.18.0 correctly (#1984)
    Improved autodetection of std::byte (#1992)
    Simplified implementation of templated test cases (#2007)
        This should have a tiny positive effect on its compilation throughput

Fixes

    Automatic stringification of ranges handles sentinel ranges properly (#2004)