Version 1.15.0

Added mdc example to readme

Bump spdlog to version 1.14.0

Bump version to 1.13.0

Fixed #2724 by excluding bin_to_hex sink if using std::format

Version 1.11.0

clang format

Bump version to 1.9.2

Merge pull request #2011 from sjanel/bugfix/fixclangcompilation

Fix compilation error in clang 13 in C++20 mode - ambiguous call to log function

bump version number to 1.9.0