fix(deps): update rust crate serde_json to 1.0.115 #34

Job	Run time
sanity-checks	39s
msrv	48s
x86_64-unknown-linux-gnu / stable	1m 3s
x86_64-unknown-linux-gnu / nightly	1m 1s
aarch64-unknown-linux-musl / stable	1m 48s
aarch64-unknown-linux-musl / nightly	1m 44s
x86_64-pc-windows-msvc / stable	2m 10s
x86_64-pc-windows-msvc / nightly	2m 6s
x86_64-apple-darwin / stable	1m 37s
x86_64-apple-darwin / nightly	1m 53s
release	2s
	14m 51s

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