chore(deps): bump serde from 1.0.189 to 1.0.193 #760

Job	Run time
Test	2m 58s
Lint	6m 18s
Build (x86_64-unknown-linux-gnu)	1m 39s
Build (x86_64-unknown-linux-musl)	1m 45s
Build (i686-unknown-linux-gnu)	1m 42s
Build (i686-unknown-linux-musl)	1m 41s
Build (aarch64-unknown-linux-gnu)	1m 39s
Build (aarch64-unknown-linux-musl)	1m 41s
Build (armv5te-unknown-linux-gnueabi)	1m 41s
Build (armv7-unknown-linux-gnueabihf)	1m 50s
Build (arm-unknown-linux-gnueabi)	1m 37s
Build (arm-unknown-linux-gnueabihf)	1m 38s
Build (riscv64gc-unknown-linux-gnu)	1m 44s
	27m 53s

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