Bump org.postgresql:postgresql from 42.7.5 to 42.7.6

Bumps [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc) from 42.7.5 to 42.7.6.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](pgjdbc/pgjdbc@REL42.7.5...REL42.7.6)

---
updated-dependencies:
- dependency-name: org.postgresql:postgresql
  dependency-version: 42.7.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -37,7 +37,7 @@ org-mockito-mockito-bom = { module = "org.mockito:mockito-bom", version.ref = "o
 org-mongodb-mongodb-driver-core = { module = "org.mongodb:mongodb-driver-core", version.ref = "org-mongodb" }
 org-mongodb-mongodb-driver-reactivestreams = { module = "org.mongodb:mongodb-driver-reactivestreams", version.ref = "org-mongodb" }
 org-mongodb-mongodb-driver-sync = { module = "org.mongodb:mongodb-driver-sync", version.ref = "org-mongodb" }
-org-postgresql = "org.postgresql:postgresql:42.7.5"
+org-postgresql = "org.postgresql:postgresql:42.7.6"
 org-springframework-data-spring-data-bom = "org.springframework.data:spring-data-bom:2025.0.0"
 org-springframework-security-spring-security-bom = "org.springframework.security:spring-security-bom:6.5.0"
 org-springframework-spring-framework-bom = "org.springframework:spring-framework-bom:6.2.7"