Bump postgresql from 42.3.3 to 42.4.1 in /frameworks/Java/rapidoid

Bumps [postgresql](https://github.com/pgjdbc/pgjdbc) from 42.3.3 to 42.4.1.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](https://github.com/pgjdbc/pgjdbc/compare/REL42.3.3...REL42.4.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

frameworks/Java/rapidoid/pom.xml

@@ -28,7 +28,7 @@
 		<dependency>
 			<groupId>org.postgresql</groupId>
 			<artifactId>postgresql</artifactId>
-			<version>42.3.3</version>
+			<version>42.4.1</version>
 		</dependency>
 		<dependency>
 			<groupId>com.zaxxer</groupId>