Update spring.version to v5

Author: dev-mend-for-github-com[bot]

pom.xml

@@ -16,7 +16,7 @@
 
 		<slf4j.version>1.6.1</slf4j.version>
 		<log4j.version>1.2.16</log4j.version>
-		<spring.version>3.1.1.RELEASE</spring.version>
+		<spring.version>5.3.14</spring.version>
 		<h2.version>1.3.162</h2.version>
 	</properties>