patch log4j vulnerability

.gitignore

 .idea
 !.idea/copyright
+.metals
 
 build
 
-.gradle
\ No newline at end of file
+.gradle

build.gradle

@@ -27,11 +27,11 @@ repositories {
 
 ext {
     kafkaV = '2.7.0'
-    log4jV = '2.11.2'
+    log4jV = '2.15.0'
 }
 
 dependencies {
-    implementation 'org.memobase:memobase-service-utilities:3.0.1'
+    implementation 'org.memobase:memobase-service-utilities:3.1.1'
     implementation group: 'org.apache.kafka', name: 'kafka-clients', version: kafkaV
     // JSON Parser
     implementation 'com.beust:klaxon:5.5'
@@ -75,4 +75,4 @@ plugins.withType(DistributionPlugin) {
     distTar {
         archiveFileName = 'app.tar'
     }
-}
\ No newline at end of file
+}