test(deps): bump org.apache.maven.plugins:maven-failsafe-plugin from 3.5.1 to 3.5.2 in /google-cloud-spanner-hibernate-testing

test(deps): bump org.apache.maven.plugins:maven-failsafe-plugin from 3.5.1 to 3.5.2 in /google-cloud-spanner-hibernate-testing #1580