tweak docker qna tests

.github/workflows/test_run_qna.yaml

@@ -17,13 +17,14 @@ env:
   relevance: ( (it as string) of operating system ; (it as string) of version of client ; elements of it ) of sets of pathnames of (files of it; folders of it) of folders ("/tmp";"/Windows/Temp")
 
 jobs:
-  test_run_qna_docker:
+  test_run_qna_docker_rhel_family:
     runs-on: ubuntu-latest
     strategy:
       matrix:
         container-image:
           [
             "redhat/ubi8:latest",
+            "redhat/ubi9:latest",
             "almalinux:latest",
             "oraclelinux:9",
             "rockylinux:9",