ARTEMIS-X Bump testcontainers.version from 1.20.5 to 1.20.6

Bumps `testcontainers.version` from 1.20.5 to 1.20.6.

Updates `org.testcontainers:testcontainers` from 1.20.5 to 1.20.6
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.20.5...1.20.6)

Updates `org.testcontainers:selenium` from 1.20.5 to 1.20.6
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.20.5...1.20.6)

---
updated-dependencies:
- dependency-name: org.testcontainers:testcontainers
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.testcontainers:selenium
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -169,7 +169,7 @@
       <version.jaxb.runtime>2.3.9</version.jaxb.runtime>
       <paho.client.mqtt.version>1.2.5</paho.client.mqtt.version>
       <postgresql.version>42.7.5</postgresql.version>
-      <testcontainers.version>1.20.5</testcontainers.version>
+      <testcontainers.version>1.20.6</testcontainers.version>
       <selenium.version>4.29.0</selenium.version>
       <exec-maven-plugin.version>3.5.0</exec-maven-plugin.version>
       <apache.httpcore.version>4.4.16</apache.httpcore.version>