XWIKI-20669: Upgrade to PostgresSQL connector 42.5.3

Author: tmortagne

pom.xml

@@ -107,7 +107,7 @@
     <derby.version>10.14.2.0</derby.version>
     <pgsql.groupId>org.postgresql</pgsql.groupId>
     <pgsql.artifactId>postgresql</pgsql.artifactId>
-    <pgsql.version>42.5.1</pgsql.version>
+    <pgsql.version>42.5.3</pgsql.version>
     <oracle.groupId>com.oracle.ojdbc</oracle.groupId>
     <oracle.artifactId>ojdbc8</oracle.artifactId>
     <oracle.version>19.3.0.0</oracle.version>