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:production
  update-type: version-update:semver-patch
...

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

gradle/libs.versions.toml

@@ -6,7 +6,7 @@ jvmTarget = "21"
 kotlin = "2.0.20"
 mockk = "1.13.12"
 mockkSpring = "4.0.2"
-postgres = "42.7.3"
+postgres = "42.7.4"
 spotless = "6.25.0"
 springDependencyManagement = "1.1.6"
 springboot = "3.3.3"