Bump spring-data-commons from 2.3.0.RELEASE to 2.3.1.RELEASE (#41)

Author: dependabot[bot]

pom.xml

@@ -38,7 +38,7 @@
 
     <properties>
         <spring.version>5.2.7.RELEASE</spring.version>
-        <spring-data.version>2.3.0.RELEASE</spring-data.version>
+        <spring-data.version>2.3.1.RELEASE</spring-data.version>
 
         <hibernate-validator.version>6.1.0.Final</hibernate-validator.version>
         <aws-java-sdk.version>1.11.664</aws-java-sdk.version>