refactor: repeated concept checks removed from `get_common_reference` #1860

Job	Run time
Generate build matrix for CMake Test Package CI	6s
Apple Clang 15 C++20 fmtlib gsl-lite Debug	57s
Apple Clang 15 C++20 fmtlib none Release	56s
Clang-16 (x86-64) C++20 fmtlib gsl-lite Debug	1m 3s
Clang-16 (x86-64) C++20 fmtlib none Release	57s
Clang-17 (x86-64) C++20 fmtlib none Debug	1m 16s
Clang-17 (x86-64) C++20 std::format gsl-lite Debug	1m 21s
Clang-18 (arm64) C++20 std::format gsl-lite Debug	1m 14s
Clang-18 (arm64) C++23 fmtlib none Release	1m 2s
Clang-18 (x86-64) C++20 std::format gsl-lite Debug	1m 20s
Clang-18 (x86-64) C++23 std::format none Debug	1m 18s
GCC-12 C++20 fmtlib gsl-lite Debug	41s
GCC-12 C++20 fmtlib ms-gsl Release	55s
GCC-12 C++23 fmtlib ms-gsl Debug	42s
GCC-13 C++20 std::format gsl-lite Debug	41s
GCC-13 C++20 std::format none Release	34s
GCC-14 C++20 fmtlib none Release	29s
GCC-14 C++20 std::format gsl-lite Debug	41s
MSVC 14.4 C++20 fmtlib gsl-lite Debug	1m 45s
MSVC 14.4 C++20 std::format gsl-lite Debug	2m 1s
	19m 59s

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