chore(deps): update rust crate pbjson-build to 0.8.0

Author: renovate[bot]

crates/zitadel-gen/Cargo.toml

@@ -71,4 +71,4 @@ tonic = "0.12.0"
 [build-dependencies]
 tonic-build = "0.12.0"
 prost-build = { version = "0.13.1", default-features = false }
-pbjson-build = "0.7.0"
+pbjson-build = "0.8.0"