repo: make line endings unix by default #10

Job	Run time
ubuntu-22.04, default debug	18s
windows-2022, default debug	1m 13s
macos-latest, default debug	26s
windows-2022, gcc debug	57s
ubuntu-22.04, clang debug	24s
ubuntu-22.04, sanitize debug	36s
windows-2022, sanitize+asanonly debug	1m 34s
ubuntu-22.04, clang+sanitize debug	48s
ubuntu-22.04, clang+msan debug	1m 55s
windows-2022, clang-cl+sanitize debug	1m 40s
windows-2022, clang-cl+msan debug	1m 28s
ubuntu-22.04, default release	20s
windows-2022, default release	1m 5s
macos-latest, default release	26s
windows-2022, gcc release	1m 11s
ubuntu-22.04, clang release	23s
ubuntu-22.04, sanitize release	31s
windows-2022, sanitize+asanonly release	1m 6s
ubuntu-22.04, clang+sanitize release	38s
ubuntu-22.04, clang+msan release	28s
windows-2022, clang-cl+sanitize release	1m 20s
windows-2022, clang-cl+msan release	1m 6s
	19m 53s

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