Bump org.postgresql:postgresql from 42.7.5 to 42.7.7

Bumps [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc) from 42.7.5 to 42.7.7.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](pgjdbc/pgjdbc@REL42.7.5...REL42.7.7)

---
updated-dependencies:
- dependency-name: org.postgresql:postgresql
  dependency-version: 42.7.7
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pom.xml

@@ -375,7 +375,7 @@
 			<dependency>
 				<groupId>org.postgresql</groupId>
 				<artifactId>postgresql</artifactId>
-				<version>42.7.5</version>
+				<version>42.7.7</version>
 			</dependency>
 			<dependency>
 				<groupId>joda-time</groupId>