build(deps): bump org.postgresql:postgresql from 42.7.11 to 42.7.12

Bumps [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc) from 42.7.11 to 42.7.12.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](pgjdbc/pgjdbc@REL42.7.11...REL42.7.12)

---
updated-dependencies:
- dependency-name: org.postgresql:postgresql
  dependency-version: 42.7.12
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -11,7 +11,7 @@ jetty = "12.1.10"
 junit = "6.1.1"
 mockito = "5.23.0"
 nimbusJoseJwt = "10.9.1"
-postgresql = "42.7.11"
+postgresql = "42.7.12"
 restAssured = "6.0.0"
 slf4j = "2.0.18"
 tck-dps = "1.1.2"