bump version of serde_json in supply chain exception

Author: keks

supply-chain/config.toml

@@ -614,7 +614,7 @@ version = "3.0.7"
 criteria = "safe-to-run"
 
 [[exemptions.serde_json]]
-version = "1.0.139"
+version = "1.0.140"
 criteria = "safe-to-deploy"
 
 [[exemptions.serde_spanned]]