Bump org.postgresql:postgresql from 42.7.2 to 42.7.3 (#456)

Bumps [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc) from 42.7.2 to 42.7.3.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](pgjdbc/pgjdbc@REL42.7.2...REL42.7.3)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -65,7 +65,7 @@
             <dependency>
                 <groupId>org.postgresql</groupId>
                 <artifactId>postgresql</artifactId>
-                <version>42.7.2</version>
+                <version>42.7.3</version>
             </dependency>
             <dependency>
                 <groupId>com.oracle.database.jdbc</groupId>