Bump org.testcontainers:testcontainers from 1.20.3 to 1.20.4

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:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

plugin/pom.xml

@@ -25,7 +25,7 @@
 
     <!-- Library Dependencies Versions -->
     <eclipse-collections.version>9.2.0</eclipse-collections.version>
-    <testcontainers.version>1.20.3</testcontainers.version>
+    <testcontainers.version>1.20.4</testcontainers.version>
 
     <!-- Maven Surefire ArgLine -->
     <argLine>-Djava.awt.headless=true -Xmx1024m -Djenkins.test.timeout=1000 --add-opens java.base/java.lang=ALL-UNNAMED --add-opens java.base/java.io=ALL-UNNAMED --add-opens java.base/java.util=ALL-UNNAMED --add-opens java.base/java.util.concurrent=ALL-UNNAMED</argLine>