Update dependency org.testcontainers:testcontainers to v2

Author: renovate[bot]

build.gradle

@@ -38,7 +38,7 @@ def versions = [
   logstashEncoder    : '8.1',
   feign              : '3.8.0',
   bytebuddy          : '1.12.7',
-  testContainer_postgresql: '1.21.4',
+  testContainer_postgresql: '2.0.5',
   serenity           : '4.2.34'
 ]