Fix clippy

Author: mars

buildpacks/static-web-server/src/caddy_config.rs

@@ -10,13 +10,13 @@ use std::collections::HashMap;
 /// Transforms the given [`HerokuWebServerConfig`] into an equivalent Caddy JSON configuration.
 /// Keeping this as a single function, because many lines are just the JSON itself being assembled.
 #[allow(clippy::too_many_lines)]
-pub(crate) fn caddy_json_config(config: HerokuWebServerConfig) -> serde_json::Value {
+pub(crate) fn caddy_json_config(config: &HerokuWebServerConfig) -> serde_json::Value {
     let mut routes = vec![];
 
     // Header routes come first so headers will be added to any response down the chain.
     if let Some(ref headers) = config.headers {
         tracing::info!({ CONFIG_RESPONSE_HEADERS_ENABLED } = true, "config");
-        routes.extend(generate_response_headers_routes(&headers));
+        routes.extend(generate_response_headers_routes(headers));
     }
 
     let doc_root = config

buildpacks/static-web-server/src/config_web_server.rs

@@ -56,7 +56,7 @@ pub(crate) fn config_web_server(
     );
 
     // Transform web server config to Caddy native JSON config
-    let caddy_config_json = serde_json::to_string(&caddy_json_config(heroku_config))
+    let caddy_config_json = serde_json::to_string(&caddy_json_config(&heroku_config))
         .map_err(StaticWebServerBuildpackError::Json)?;
 
     let config_path = configuration_layer.path().join("caddy.json");