deps: bump serde from 1.0.206 to 1.0.207 #1260

Job	Run time
Check formatting (Prettier)	6s
Build on x86_64-apple-darwin	3m 32s
Validate PR title	4s
Build on aarch64-apple-darwin	2m 37s
Build on x86_64-pc-windows-msvc	9m 26s
Build on x86_64-unknown-linux-gnu	3m 13s
clippy	1m 35s
Check rustdoc intra-doc links	1m 39s
rustfmt	15s
Test on x86_64-apple-darwin	1m 39s
Test on x86_64-pc-windows-msvc	2m 19s
Test on x86_64-unknown-linux-gnu	1m 15s
	27m 40s

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