Bump org.postgresql:postgresql in /commons/marmotta/kiwi

Bumps [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc) from 9.2-1003-jdbc4 to 42.3.9.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](https://github.com/pgjdbc/pgjdbc/commits/REL42.3.9)

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

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/commons/marmotta/kiwi/pom.xml b/commons/marmotta/kiwi/pom.xml
index 4e57f6a..aab407b 100644
--- a/commons/marmotta/kiwi/pom.xml
+++ b/commons/marmotta/kiwi/pom.xml
@@ -146,7 +146,7 @@
         <dependency>
             <groupId>org.postgresql</groupId>
             <artifactId>postgresql</artifactId>
-            <version>9.2-1003-jdbc4</version>
+            <version>42.3.9</version>
         </dependency>
         <dependency>
             <groupId>org.apache.tomcat</groupId>