Bump org.postgresql:postgresql from 42.6.0 to 42.7.1

Bumps [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc) from 42.6.0 to 42.7.1.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](pgjdbc/pgjdbc@REL42.6.0...REL42.7.1)

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

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

pom.xml

@@ -41,7 +41,7 @@
         <!-- Require Java 11 -->
         <maven.compiler.target>11</maven.compiler.target>
         <maven.compiler.source>11</maven.compiler.source>
-        <version.org.postgresql.postgresql>42.6.0</version.org.postgresql.postgresql>
+        <version.org.postgresql.postgresql>42.7.1</version.org.postgresql.postgresql>
         <version.com.h2database>2.2.224</version.com.h2database>
         <version.com.microsoft.sqlserver>9.4.0.jre8</version.com.microsoft.sqlserver>
         <version.com.oracle.ojdbc8>19.3.0.0</version.com.oracle.ojdbc8>