Bump testcontainer.version from 1.21.3 to 1.21.4

Bumps `testcontainer.version` from 1.21.3 to 1.21.4.

Updates `org.testcontainers:junit-jupiter` from 1.21.3 to 1.21.4
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.21.3...1.21.4)

Updates `org.testcontainers:testcontainers` from 1.21.3 to 1.21.4
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.21.3...1.21.4)

---
updated-dependencies:
- dependency-name: org.testcontainers:junit-jupiter
  dependency-version: 1.21.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
- dependency-name: org.testcontainers:testcontainers
  dependency-version: 1.21.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pom.xml

@@ -64,7 +64,7 @@
     <!-- Test dependencies version -->
     <logback.version>1.5.23</logback.version>
     <junit.version>6.0.1</junit.version>
-    <testcontainer.version>1.21.3</testcontainer.version>
+    <testcontainer.version>1.21.4</testcontainer.version>
     <wiremock.version>3.13.2</wiremock.version>
     <mockito.version>5.21.0</mockito.version>
     <system.stubs.version>2.1.8</system.stubs.version>