Bump org.postgresql:postgresql in /frameworks/Kotlin/kooby

Bumps [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc) from 42.7.4 to 42.7.7.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](pgjdbc/pgjdbc@REL42.7.4...REL42.7.7)

---
updated-dependencies:
- dependency-name: org.postgresql:postgresql
  dependency-version: 42.7.7
  dependency-type: direct:production
...

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

Author: dependabot[bot]

frameworks/Kotlin/kooby/pom.xml

@@ -13,7 +13,7 @@
 
   <properties>
     <jooby.version>3.3.0</jooby.version>
-    <postgresql.version>42.7.4</postgresql.version>
+    <postgresql.version>42.7.7</postgresql.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <maven.compiler.source>22</maven.compiler.source>
     <maven.compiler.target>22</maven.compiler.target>