Build

use `constexpr` in `Core` where possible #11201

Job	Run time
check-pr	3s
lint / lint	19s
docs / Build linux64	1m 25s
package / Linux / Build linux64	5m 53s
package / Windows / Build win64	21m 43s
test / Windows MSVC / Build win64	20m 26s
test / Linux gcc-11 / Build linux64	4m 39s
test / Linux gcc-12 / Build linux64	6m 28s
test / Run Linux test suite / Test (ubuntu, gcc-11, default plugins, default config)	1m 2s
test / Run Linux test suite (gcc-12, all plugins) / Test (ubuntu, gcc-12, all plugins, default config)	1m 9s
test / Run Windows test suite (empty config) / Test (windows, msvc, default plugins, empty config)	1m 19s
test / Run Windows test suite / Test (windows, msvc, default plugins, default config)	1m 10s
	1h 5m 36s

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