Bump org.postgresql:postgresql from 42.7.2 to 42.7.3

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] <[email protected]>

pom.xml

@@ -36,7 +36,7 @@
     <skip.integration.tests>false</skip.integration.tests>
     <skip.unit.tests>false</skip.unit.tests>
     <skip.dependency.check>false</skip.dependency.check>
-    <postgresql.version>42.7.2</postgresql.version>
+    <postgresql.version>42.7.3</postgresql.version>
     <hapi.version>6.8.3</hapi.version>
     <wiremock-standalone.version>3.2.0</wiremock-standalone.version>
     <testcontainers.version>1.19.3</testcontainers.version>