Merge pull request #407 from mybatis/dependabot/maven/org.postgresql-…

…postgresql-42.3.1

Bump postgresql from 42.3.0 to 42.3.1

pom.xml

@@ -318,7 +318,7 @@
     <dependency>
       <groupId>org.postgresql</groupId>
       <artifactId>postgresql</artifactId>
-      <version>42.3.0</version>
+      <version>42.3.1</version>
       <scope>test</scope>
     </dependency>
   </dependencies>