2.0.3

Fixes:

• Fix documentation: default format type specifier for integers is i, not d:
  when not explicitly specified by a format specifier, the base of an integer is determined based on its prefix:
  0x... is hexadecimal, 0... or 0o... is octal, 0b... is binary, and everything else is decimal.
• Fix a compilation error which would occur when scanning more than 11 arguments with scn::scan.
• Small CMake adjustments to better support use as a subproject (#113, thanks @frankmiller (Frank Miller))
• Fix misplaced include of GNUInstallDirs in CMake (#111, thanks @WangWeiLin-MV)
• Allow for externally installed versions for GTest and Google Benchmark (#112, thanks @xvitaly (Vitaly))
• Adjust the definition of SCN_COMPILER to fix usage with a recent Clang using modules (#109, thanks @Delta-dev-99 (Armando Martin))
• Allow for more versions of dependencies (simdutf, fast_float)
• Fix C++23 build failure caused by missing inclusion of <utility> for std::unreachable

Full Changelog: v2.0.2...v2.0.3