Refs #4412: using namespace std; not simplified (constructor) #19552

Job	Run time
build_make (alpine:3.23)	4m 41s
build_cmake (ubuntu:25.10, true, true)	4m 13s
build_make (ubuntu:24.04)	3m 11s
build_cmake (ubuntu:24.04, true, true)	3m 2s
build_make (ubuntu:25.10)	4m 17s
build_cmake (alpine:3.23, false, false)	4m 34s
	23m 58s

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