fix: missing `get_common_unit()` overload added #1896

Job	Run time
Generate build matrix for CMake Test Package CI	2s
Apple Clang 15.2 C++20 fmtlib gsl-lite Debug	1m 14s
Apple Clang 15.2 C++23 fmtlib gsl-lite Release	1m 7s
Apple Clang 16.1 C++20 fmtlib gsl-lite Debug	40s
Apple Clang 16.1 C++20 std::format gsl-lite Debug	42s
Clang-16 (x86-64) C++20 fmtlib gsl-lite Debug	1m 9s
Clang-16 (x86-64) C++23 fmtlib none Debug	1m 1s
Clang-17 (x86-64) C++20 fmtlib none Debug	1m 21s
Clang-17 (x86-64) C++20 std::format gsl-lite Debug	1m 12s
Clang-18 (arm64) C++20 std::format gsl-lite Debug	1m 18s
Clang-18 (arm64) C++23 fmtlib none Release	1m 19s
Clang-18 (x86-64) C++20 fmtlib ms-gsl Release	1m 15s
Clang-18 (x86-64) C++20 std::format gsl-lite Debug	1m 19s
Clang-18 (x86-64) C++23 std::format none Debug	1m 17s
GCC-12 C++20 fmtlib gsl-lite Debug	41s
GCC-12 C++23 fmtlib ms-gsl Release	43s
GCC-13 C++20 std::format gsl-lite Debug	37s
GCC-13 C++20 std::format none Release	34s
GCC-14 C++20 fmtlib none Release	35s
GCC-14 C++20 std::format gsl-lite Debug	38s
MSVC 14.4 C++20 fmtlib ms-gsl Release	2m 7s
MSVC 14.4 C++20 std::format gsl-lite Debug	2m 30s
	23m 21s

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