Bump org.postgresql:postgresql from 42.7.5 to 42.7.6 (#272)

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
...

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Author: dependabot[bot]

common-internal-bom/build.gradle.kts

@@ -26,6 +26,6 @@ dependencies {
         api("com.github.blagerweij:liquibase-sessionlock:1.6.9")
         api("org.awaitility:awaitility:4.3.0")
         api("com.zaxxer:HikariCP:6.3.0")
-        api("org.postgresql:postgresql:42.7.5")
+        api("org.postgresql:postgresql:42.7.6")
     }
 }