Run tests with jruby 9.4.13.0 (elastic#17798)

Now that elastic/ci-agent-images#1573 is merged
and promoted https://buildkite.com/elastic/vm-images-platform-ingest/builds/966
run tests with 9.4.13.0.

Author: donoghuc

.ruby-version

@@ -1 +1 @@
-jruby-9.4.9.0
+jruby-9.4.13.0