ci: docker_tag=ext - Fix config formatting

src/config.rs

@@ -24,7 +24,7 @@ pub struct Config {
 impl Config {
     pub fn read_from_file(filename: &str) -> Result<Self> {
         let mut file_content = HashMap::new();
-        
+
         // Try to read from environment variables first
         let env_vars = [
             ("core_url", "CORE_URL"),