Build(deps): Bump org.postgresql:postgresql from 42.7.7 to 42.7.8

Bumps [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc) from 42.7.7 to 42.7.8.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](pgjdbc/pgjdbc@REL42.7.7...REL42.7.8)

---
updated-dependencies:
- dependency-name: org.postgresql:postgresql
  dependency-version: 42.7.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pom.xml

@@ -115,7 +115,7 @@
     <derby.version>10.17.1.0</derby.version>
     <hsqldb.version>2.7.4</hsqldb.version>
     <h2.version>2.3.232</h2.version>
-    <postgresql.version>42.7.7</postgresql.version>
+    <postgresql.version>42.7.8</postgresql.version>
     <oracle.version>23.9.0.25.07</oracle.version>
     <mysql.version>9.4.0</mysql.version>
     <mssql.version>13.2.0.jre8</mssql.version>