Bump postgresql from 42.2.22 to 42.4.1 in /eXperDB-Management-WebConsole

Bumps [postgresql](https://github.com/pgjdbc/pgjdbc) from 42.2.22 to 42.4.1.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](pgjdbc/pgjdbc@REL42.2.22...REL42.4.1)

---
updated-dependencies:
- dependency-name: org.postgresql:postgresql
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

eXperDB-Management-WebConsole/pom.xml

@@ -260,7 +260,7 @@
    <dependency>
 		    <groupId>org.postgresql</groupId>
 		    <artifactId>postgresql</artifactId>
-		    <version>42.3.3</version>
+		    <version>42.4.1</version>
 		</dependency>
 
       <!-- mybatis -->