build(deps): 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]

gradle/libs.versions.toml

@@ -116,7 +116,7 @@ ignite-spring = { group = "org.apache.ignite", name = "ignite-spring", version.r
 ignite-indexing = { group = "org.apache.ignite", name = "ignite-indexing", version.ref = "ignite" }
 
 logback-classic = { group = "ch.qos.logback", name = "logback-classic", version = "1.5.18" }
-postgresql = { group = "org.postgresql", name = "postgresql", version = "42.7.7" }
+postgresql = { group = "org.postgresql", name = "postgresql", version = "42.7.8" }
 jcommander = { group = "com.beust", name = "jcommander", version = "1.82" }
 junit = { group = "junit", name = "junit", version = "4.13.2" }
 xmlunit-core = { group = "org.xmlunit", name = "xmlunit-core", version.ref="xmlunit"}