fix: pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-ORGPOSTGRESQL-6252740

pom.xml

@@ -102,7 +102,7 @@
         <lib.jdbc-driver.mssql.version>11.2.3.jre18</lib.jdbc-driver.mssql.version>
         <!-- Leave at 8.0.29 until https://github.com/datanucleus/datanucleus-rdbms/issues/446 is resolved! -->
         <lib.jdbc-driver.mysql.version>8.0.33</lib.jdbc-driver.mysql.version>
-        <lib.jdbc-driver.postgresql.version>42.6.0</lib.jdbc-driver.postgresql.version>
+        <lib.jdbc-driver.postgresql.version>42.7.2</lib.jdbc-driver.postgresql.version>
         <!-- Maven Plugin Properties -->
         <plugin.cyclonedx.projectType>application</plugin.cyclonedx.projectType>
         <plugin.cyclonedx.outputFormat>json</plugin.cyclonedx.outputFormat>