Log Message:
Update fmtlib to 11.0.1

Many improvemnts. Highlights include:

- Added formatters for `std::chrono::day`, `std::chrono::month`,
  `std::chrono::year` and `std::chrono::year_month_day`
- Fixed handling of precision in `%S` (https://github.com/fmtlib/fmt/issues/3794,
- Added a formatter for `std::complex`
- Added a formatter for `std::expected`
- Added a formatter for `std::type_info`

and much faster compile times even without using the new cut down
fmt/base.h which provides the printf() equivalent family of functions.

For a full list see https://github.com/fmtlib/fmt/blob/11.0.1/ChangeLog.md