Bump serde from 1.0.175 to 1.0.189 #623

Job	Run time
check-juliaup (x86_64-pc-windows-msvc-windowsstore)	2m 11s
check-juliaup (x86_64-pc-windows-msvc-windowsappinstaller)	2m 13s
test-juliaup (x86_64-pc-windows-msvc)	9m 8s
check-juliaup (x86_64-pc-windows-gnu-msi)	3m 11s
test-juliaup (x86_64-pc-windows-gnu)	9m 5s
check-juliaup (x86_64-pc-windows-gnu-msi)	2m 35s
test-juliaup (x86_64-apple-darwin)	4m 25s
check-juliaup (x86_64-apple-darwin)	1m 19s
test-juliaup (x86_64-unknown-linux-gnu)	4m 40s
check-juliaup (x86_64-unknown-linux-gnu)	2m 57s
test-juliaup (x86_64-unknown-linux-musl)	6m 18s
check-juliaup (x86_64-unknown-linux-musl)	3m 38s
test-juliaup (i686-pc-windows-msvc)	8m 48s
check-juliaup (i686-pc-windows-msvc-windowsstore)	2m 17s
test-juliaup (i686-pc-windows-gnu)	9m 0s
check-juliaup (i686-pc-windows-msvc-windowsappinstaller)	3m 33s
check-juliaup (i686-pc-windows-gnu-msi)	2m 50s
check-juliaup (i686-unknown-linux-gnu)	2m 37s
check-juliaup (i686-unknown-linux-musl)	2m 52s
check-juliaup (aarch64-unknown-linux-gnu)	2m 43s
check-juliaup (aarch64-unknown-linux-musl)	3m 29s
check-juliaup (aarch64-apple-darwin)	2m 8s
	1h 31m 57s

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