Bump serde_derive from 1.0.93 to 1.0.94 (#4856)

Bumps [serde_derive](https://github.com/serde-rs/serde) from 1.0.93 to 1.0.94.
- [Release notes](https://github.com/serde-rs/serde/releases)
- [Commits](https://github.com/serde-rs/serde/compare/v1.0.93...v1.0.94)

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

sdk/Cargo.toml

@@ -24,7 +24,7 @@ num-traits = "0.2"
 rand = "0.6.5"
 rayon = "1.1.0"
 serde = "1.0.93"
-serde_derive = "1.0.93"
+serde_derive = "1.0.94"
 serde_json = "1.0.39"
 sha2 = "0.8.0"
 solana-ed25519-dalek = "0.2.0"