build(deps): bump org.postgresql:postgresql from 42.7.1 to 42.7.4 (#437)

Bumps [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc) from 42.7.1 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@REL42.7.1...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]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

gradle/libs.versions.toml

@@ -12,7 +12,7 @@ jersey = "3.1.8"
 jupiter = "5.11.0"
 mockserver = "5.15.0"
 nimbus = "9.40"
-postgres = "42.7.1"
+postgres = "42.7.4"
 restAssured = "5.5.0"
 swagger = "2.2.21"
 rsApi = "4.0.0"