Bump Testcontainers to version 1.15.2
<version.maven.surefire.plugin>3.0.0-M4</version.maven.surefire.plugin>
<!-- Note: we are deliberately overriding this one due to GH issue #990 -->
- <testcontainers-version>1.15.1</testcontainers-version>
+ <testcontainers-version>1.15.2</testcontainers-version>
<mycila-license-version>3.0</mycila-license-version>
