Bump org.postgresql:postgresql in /phoss-smp-webapp-sql

Bumps [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc) from 42.7.1 to 42.7.2.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](https://github.com/pgjdbc/pgjdbc/commits)

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

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

phoss-smp-webapp-sql/pom.xml

@@ -76,7 +76,7 @@
       <dependency>
         <groupId>org.postgresql</groupId>
         <artifactId>postgresql</artifactId>
-        <version>42.7.1</version>
+        <version>42.7.2</version>
       </dependency>
       <dependency>
         <groupId>com.ibm.db2</groupId>