Upgrade PostgreSQL JDBC driver to 42.6.2

Closes #1934

Author: schauder

pom.xml

@@ -38,7 +38,7 @@
 		<mariadb-java-client.version>3.1.4</mariadb-java-client.version>
 		<mssql.version>12.2.0.jre11</mssql.version>
 		<mysql-connector-java.version>8.0.33</mysql-connector-java.version>
-		<postgresql.version>42.6.0</postgresql.version>
+		<postgresql.version>42.6.2</postgresql.version>
 		<!--
 			The Oracle driver 23.3.0.23.09 is not considered production ready by Oracle, but it fixes two important problems for Spring Data JDBC:
 		 	https://stackoverflow.com/q/72717261/66686