Bump the shuttle group with 2 updates

Bumps the shuttle group with 2 updates: shuttle-runtime and shuttle-serenity.


Updates `shuttle-runtime` from 0.42.0 to 0.43.0

Updates `shuttle-serenity` from 0.42.0 to 0.43.0

---
updated-dependencies:
- dependency-name: shuttle-runtime
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: shuttle
- dependency-name: shuttle-serenity
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: shuttle
...

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

Cargo.toml

@@ -12,7 +12,7 @@ chrono = { version = "0.4.37", default-features = false }
 poise = "0.6.1"
 serde = "1.0.197"
 serde_json = "1.0.115"
-shuttle-runtime = "0.42.0"
+shuttle-runtime = "0.43.0"
 shuttle-secrets = "0.42.0"
-shuttle-serenity = "0.42.0"
+shuttle-serenity = "0.43.0"
 tracing = "0.1.40"