build(deps-dev): Bump org.testcontainers:neo4j from 1.20.3 to 1.20.4

Bumps [org.testcontainers:neo4j](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:neo4j
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

neo4j-ogm-tests/neo4j-ogm-integration-tests/pom.xml

@@ -35,7 +35,7 @@
     <description>Integration tests of Neo4j-OGM Core and API across different transports.</description>
 
     <properties>
-        <testcontainers.version>1.20.3</testcontainers.version>
+        <testcontainers.version>1.20.4</testcontainers.version>
         <visible-assertions.version>2.1.2</visible-assertions.version>
         <java-module-name>org.neo4j.ogm.it</java-module-name>
     </properties>