Update pbjson-build requirement from 0.3 to 0.4

Updates the requirements on [pbjson-build](https://github.com/influxdata/pbjson) to permit the latest version.
- [Release notes](https://github.com/influxdata/pbjson/releases)
- [Commits](influxdata/pbjson@0.3.0...0.4.0)

---
updated-dependencies:
- dependency-name: pbjson-build
  dependency-type: direct:production
...

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

datafusion/proto/Cargo.toml

@@ -52,5 +52,5 @@ doc-comment = "0.3"
 tokio = "1.18"
 
 [build-dependencies]
-pbjson-build = { version = "0.3", optional = true }
+pbjson-build = { version = "0.4", optional = true }
 prost-build = { version = "0.11.1" }