chore(deps): bump org.postgresql:postgresql from 42.6.0 to 42.7.2 (#424)

Bumps [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc) from 42.6.0 to 42.7.2.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](https://github.com/pgjdbc/pgjdbc/commits)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

extensions/broker-server-postgres-flyway-jooq/build.gradle.kts

@@ -37,8 +37,8 @@ dependencies {
     api("org.jooq:jooq:3.18.7")
     api("com.github.t9t.jooq:jooq-postgresql-json:4.0.0")
 
-    jooqGenerator("org.postgresql:postgresql:42.6.0")
-    flywayMigration("org.postgresql:postgresql:42.6.0")
+    jooqGenerator("org.postgresql:postgresql:42.7.2")
+    flywayMigration("org.postgresql:postgresql:42.7.2")
     implementation("com.zaxxer:HikariCP:5.0.1")
 
     annotationProcessor("org.projectlombok:lombok:1.18.30")