Bump org.testcontainers:postgresql from 1.19.5 to 1.19.8

Bumps [org.testcontainers:postgresql](https://github.com/testcontainers/testcontainers-java) from 1.19.5 to 1.19.8.
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.19.5...1.19.8)

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

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

gradle/libs.versions.toml

@@ -15,7 +15,7 @@ kotest-arrow = "1.4.0"
 klogging = "6.0.9"
 uuid = "0.0.22"
 postgresql = "42.7.3"
-testcontainers = "1.19.5"
+testcontainers = "1.19.8"
 hikari = "5.1.0"
 dokka = "1.9.20"
 logback = "1.5.5"