Merge pull request #891 from kazuki43zoo/update-spring-5.3.31

Update spring core to v5.3.31

Author: kazuki43zoo

pom.xml

@@ -106,7 +106,7 @@
     <osgi.dynamicImport>*</osgi.dynamicImport>
 
     <mybatis.version>3.5.14</mybatis.version>
-    <spring.version>5.3.28</spring.version>
+    <spring.version>5.3.31</spring.version>
     <spring-batch.version>4.3.8</spring-batch.version>
     <module.name>org.mybatis.spring</module.name>