Build

add missing namespace #11085

Job	Run time
check-pr	2s
docs / Build linux64	1m 9s
lint / lint	19s
package / Linux / Build linux64	1m 24s
package / Windows / Build win64	7m 49s
test / Windows MSVC / Build win64	4m 15s
test / Linux gcc-11 / Build linux64	1m 26s
test / Linux gcc-12 / Build linux64	1m 45s
test / Run Linux test suite / Test (ubuntu, gcc-11, default plugins, default config)	56s
test / Run Linux test suite (gcc-12, all plugins) / Test (ubuntu, gcc-12, all plugins, default config)	55s
test / Run Windows test suite / Test (windows, msvc, default plugins, default config)	44s
test / Run Windows test suite (empty config) / Test (windows, msvc, default plugins, empty config)	37s
	21m 21s

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