Bump org.postgresql:postgresql from 42.7.7 to 42.7.8

Bumps [org.postgresql:postgresql](https://github.com/pgjdbc/pgjdbc) from 42.7.7 to 42.7.8.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/master/CHANGELOG.md)
- [Commits](pgjdbc/pgjdbc@REL42.7.7...REL42.7.8)

---
updated-dependencies:
- dependency-name: org.postgresql:postgresql
  dependency-version: 42.7.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

build.gradle

@@ -100,7 +100,7 @@ dependencies {
   // Databases
   implementation 'org.influxdb:influxdb-java:2.25'
   implementation 'com.couchbase.client:java-client:3.9.1'
-  runtimeOnly 'org.postgresql:postgresql:42.7.7' // postgresql jdbc driver required during runtime
+  runtimeOnly 'org.postgresql:postgresql:42.7.8' // postgresql jdbc driver required during runtime
 
   implementation 'commons-io:commons-io:2.20.0' // I/O functionalities
   implementation 'commons-codec:commons-codec:1.19.0' // needed by commons-compress