maven(deps-dev): bump org.testcontainers:postgresql (#4841)

Bumps [org.testcontainers:postgresql](https://github.com/testcontainers/testcontainers-java) from 1.20.3 to 1.20.4.
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.20.3...1.20.4)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -591,7 +591,7 @@
 			<dependency>
 				<groupId>org.testcontainers</groupId>
 				<artifactId>postgresql</artifactId>
-				<version>1.20.3</version>
+				<version>1.20.4</version>
 				<scope>test</scope>
 			</dependency>
 		</dependencies>