Bump serde_json from 1.0.139 to 1.0.140 #2375

Job	Run time
arm7-build	5m 17s
all-feature-combinations	4m 41s
Format-check	3s
markdown-link-check	22s
aarch64-build	4m 2s
arm7-musl-build	3m 24s
clippy-build-and-test-matrix (macos-15)	8m 15s
clippy-build-and-test-matrix (ubuntu-24.04)	9m 19s
hw_tests	38s
porky-release-build	52s
clippy-build-and-test-matrix (windows-latest)	17m 45s
web-build	2m 17s
	56m 55s

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