minor: Ensure proto crate has datetime & unicode expr flags in datafusion dev dependency (#17656)

* minor: Ensure `proto` crate has datetime & unicode expr flags in datafusion dev dependency

* toml formatting

Author: Jefffrey

datafusion/proto/Cargo.toml

@@ -57,7 +57,12 @@ serde = { version = "1.0", optional = true }
 serde_json = { workspace = true, optional = true }
 
 [dev-dependencies]
-datafusion = { workspace = true, default-features = false, features = ["sql", "nested_expressions"] }
+datafusion = { workspace = true, default-features = false, features = [
+    "sql",
+    "datetime_expressions",
+    "nested_expressions",
+    "unicode_expressions",
+] }
 datafusion-functions = { workspace = true, default-features = true }
 datafusion-functions-aggregate = { workspace = true }
 datafusion-functions-window-common = { workspace = true }