chore: bump serde_json from 1.0.67 to 1.0.68 (#19942)

* chore: bump serde_json from 1.0.67 to 1.0.68

Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.67 to 1.0.68.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.67...v1.0.68)

---
updated-dependencies:
- dependency-name: serde_json
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

* [auto-commit] Update all Cargo lock files

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: dependabot-buildkite <dependabot-buildkite@noreply.solana.com>

sdk/Cargo.toml

@@ -69,7 +69,7 @@ rustversion = "1.0.5"
 serde = "1.0.130"
 serde_bytes = "0.11"
 serde_derive = "1.0.103"
-serde_json = { version = "1.0.67", optional = true }
+serde_json = { version = "1.0.68", optional = true }
 sha2 = "0.9.8"
 sha3 = { version = "0.9.1", optional = true }
 solana-crate-features = { path = "../crate-features", version = "=1.8.0", optional = true }