Bump postgresql from 42.2.2 to 42.3.8 in /ambari-project

Bumps [postgresql](https://github.com/pgjdbc/pgjdbc) from 42.2.2 to 42.3.8.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](https://github.com/pgjdbc/pgjdbc/compare/REL42.2.2...REL42.3.8)

---
updated-dependencies:
- dependency-name: org.postgresql:postgresql
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

ambari-project/pom.xml

@@ -43,7 +43,7 @@
     <spring.security.version>5.7.2</spring.security.version>
     <fasterxml.jackson.version>2.12.7</fasterxml.jackson.version>
     <fasterxml.jackson.databind.version>2.12.7.1</fasterxml.jackson.databind.version>
-    <postgres.version>42.2.2</postgres.version>
+    <postgres.version>42.3.8</postgres.version>
     <testContainers.version>1.17.6</testContainers.version>
     <forkCount>4</forkCount>
     <reuseForks>false</reuseForks>