Bump org.postgresql:postgresql in /contrib/storage-jdbc (#3068)

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:development
...

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contrib/storage-jdbc/pom.xml

@@ -34,7 +34,7 @@
     <mysql.connector.version>8.4.0</mysql.connector.version>
     <clickhouse.jdbc.version>0.3.1</clickhouse.jdbc.version>
     <h2.version>2.2.220</h2.version>
-    <postgresql.version>42.7.11</postgresql.version>
+    <postgresql.version>42.7.12</postgresql.version>
     <mssql-jdbc.version>13.2.1.jre11</mssql-jdbc.version>
     <jtds.version>1.3.1</jtds.version>
   </properties>