fix: Fix MSVC warnings #1577

Job	Run time
host_win (x86_64)	57s
host_win (armv7)	1m 15s
host_win_msvc	1m 57s
coding_style	14s
host_arm (armv7, none, g++-10)	3m 16s
host_win (aarch64)	50s
host_arm (armv7, none, clang++-11)	4m 42s
host_x86 (x86_64, g++-10)	2m 25s
host_arm (aarch64, none, g++-10)	3m 45s
host_x86 (x86_64, clang++-11)	19s
host_arm (aarch64, none, clang++-11)	4m 35s
host_arm (aarch64, crypto+crc, g++-10)	2m 26s
host_arm (aarch64, crypto+crc, clang++-11)	4m 29s
test_win_msvc	56s
	32m 6s

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