Bump serde from 1.0.98 to 1.0.99 (#5540)

Bumps [serde](https://github.com/serde-rs/serde) from 1.0.98 to 1.0.99.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.98...v1.0.99)

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

validator-info/Cargo.toml

@@ -17,7 +17,7 @@ bincode = "1.1.4"
 clap = "2.33"
 dirs = "2.0.2"
 reqwest = "0.9.19"
-serde = "1.0.98"
+serde = "1.0.99"
 serde_derive = "1.0.98"
 serde_json = "1.0.40"
 solana-client = { path = "../client", version = "0.18.0-pre1" }