Bump org.testcontainers:testcontainers from 1.20.3 to 1.20.4 (#485)

Bumps [org.testcontainers:testcontainers](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:testcontainers
  dependency-type: direct:production
  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>

Author: dependabot[bot]

build.gradle

@@ -47,7 +47,7 @@ dependencies {
 
     testImplementation("org.mockito:mockito-core")
     testImplementation("org.testcontainers:junit-jupiter:1.20.4")
-    testImplementation("org.testcontainers:testcontainers:1.20.3")
+    testImplementation("org.testcontainers:testcontainers:1.20.4")
     testImplementation("org.testcontainers:kafka:1.20.4")
     testImplementation("org.mockito:mockito-junit-jupiter:5.14.2")
     testImplementation("org.junit.jupiter:junit-jupiter-params:5.11.3")