test artifact upgrade from 8.19 instead of 7.17 (#18635)

Author: jsvd

qa/acceptance/spec/lib/artifact_operation_spec.rb

@@ -23,5 +23,5 @@
 describe "artifacts operation" do
   logstash = ServiceTester::Artifact.new()
   it_behaves_like "installable_with_jdk", logstash
-  it_behaves_like "updated", logstash, from_release_branch="7.17"
+  it_behaves_like "updated", logstash, from_release_branch="8.19"
 end