formatting

src/main/java/stirling/software/SPDF/config/MetricsConfig.java

@@ -1,4 +1,5 @@
 package stirling.software.SPDF.config;
+
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
@@ -21,4 +22,4 @@ public class MetricsConfig {
             }
         };
     }
-}
+}