Bump versions.slf4j from 1.7.30 to 1.7.31 (#368)

dependabot-preview[bot] · web-flow · commit bb95c704845b · 2021-06-18T06:21:02.000Z
diff --git a/gradle/dependencies.gradle b/gradle/dependencies.gradle
@@ -3,7 +3,7 @@ ext {
     versions = [
         jackson           : '2.12.3',      // Json Serializer / Deserializer
         okhttp            : '4.2.2',       // HTTP Client
-        slf4j             : '1.7.30',      // Logging 
+        slf4j             : '1.7.31',      // Logging 
         logback           : '1.2.3',       // Logging
         undertow          : '2.2.8.Final',// Webserver
         metrics           : '4.2.1',       // Metrics
