Bump serde_json from 1.0.41 to 1.0.42 (#7142)

Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.41 to 1.0.42.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.41...v1.0.42)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

upload-perf/Cargo.toml

@@ -11,7 +11,7 @@ publish = false
 
 [dependencies]
 log = "0.4.8"
-serde_json = "1.0.41"
+serde_json = "1.0.42"
 solana-metrics = { path = "../metrics", version = "0.22.0" }
 
 [[bin]]