Bazel support: Add utf-8 to Windows build #6106

Job	Run time
mingw (mingw64)	4m 1s
mingw (ucrt64)	3m 48s
build (windows-2019, Win32, v142, 17, Debug)	1m 48s
build (windows-2019, Win32, v142, 17, Release)	2m 4s
build (windows-2019, Win32, v142, 17, -DBUILD_SHARED_LIBS=ON, Debug)	1m 29s
build (windows-2019, Win32, v142, 17, -DBUILD_SHARED_LIBS=ON, Release)	1m 56s
build (windows-2019, x64, v140, 14, Debug)	1m 43s
build (windows-2019, x64, v140, 14, Release)	2m 12s
build (windows-2019, x64, v141, 17, Debug)	2m 3s
build (windows-2019, x64, v141, 17, Release)	2m 41s
build (windows-2019, x64, v142, 17, Debug)	1m 35s
build (windows-2019, x64, v142, 17, Release)	2m 48s
build (windows-2019, x64, v142, 17, -DBUILD_SHARED_LIBS=ON, Debug)	1m 44s
build (windows-2019, x64, v142, 17, -DBUILD_SHARED_LIBS=ON, Release)	2m 22s
build (windows-2019, x64, v142, 20, Debug)	1m 44s
build (windows-2019, x64, v142, 20, Release)	3m 7s
build (windows-2022, x64, v143, Debug, 20)	2m 31s
	39m 36s

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