build(deps): bump prost-reflect from 0.15.3 to 0.16.3

Bumps [prost-reflect](https://github.com/andrewhickman/prost-reflect) from 0.15.3 to 0.16.3.
- [Release notes](https://github.com/andrewhickman/prost-reflect/releases)
- [Changelog](https://github.com/andrewhickman/prost-reflect/blob/main/CHANGELOG.md)
- [Commits](andrewhickman/prost-reflect@prost-reflect-v0.15.3...prost-reflect-v0.16.3)

---
updated-dependencies:
- dependency-name: prost-reflect
  dependency-version: 0.16.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.lock

@@ -30,7 +30,7 @@ mz-repr = { path = "../repr" }
 mz-pgrepr = { path = "../pgrepr" }
 ordered-float = { version = "5.1.0", features = ["serde"] }
 prost = { version = "0.13.5", features = ["no-recursion-limit"] }
-prost-reflect = "0.15.3"
+prost-reflect = "0.16.3"
 seahash = "4"
 serde = "1.0.219"
 serde_json = "1.0.145"