Bump serde_json from 1.0.134 to 1.0.138 #8375

Job	Run time
rustfmt	13s
test-wasm	1m 36s
lint-build	2m 22s
test (stable, x86_64-unknown-linux-gnu)	5m 6s
validate	20s
test (stable, x86_64-unknown-linux-musl)	7m 0s
test (stable, aarch64-unknown-linux-gnu)	4m 15s
test (stable, aarch64-unknown-linux-musl)	4m 39s
test (stable, x86_64-apple-darwin)	16m 13s
test (stable, x86_64-pc-windows-msvc)	8m 33s
test (stable, aarch64-apple-darwin, macos-latest, arm64, cargo, true)	6m 38s
test-projects	1m 44s
	58m 39s

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