Bump org.postgresql:postgresql from 42.7.3 to 42.7.4

Bumps [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc) from 42.7.3 to 42.7.4.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](pgjdbc/pgjdbc@REL42.7.3...REL42.7.4)

---
updated-dependencies:
- dependency-name: org.postgresql:postgresql
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -153,7 +153,7 @@
       <dependency>
         <groupId>org.postgresql</groupId>
         <artifactId>postgresql</artifactId>
-        <version>42.7.3</version>
+        <version>42.7.4</version>
         <scope>test</scope>
       </dependency>
       <dependency>