Bump postgresql in /grabdish/inventory-postgres-kafka (#333)

Bumps [postgresql](https://github.com/pgjdbc/pgjdbc) from 42.2.25 to 42.3.3.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](pgjdbc/pgjdbc@REL42.2.25...REL42.3.3)

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

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grabdish/inventory-postgres-kafka/pom.xml

@@ -172,7 +172,7 @@
         <dependency>
             <groupId>org.postgresql</groupId>
             <artifactId>postgresql</artifactId>
-            <version>42.2.25</version>
+            <version>42.3.3</version>
         </dependency>
         <dependency>
             <groupId>org.apache.kafka</groupId>