Update test_negative_pre_upgrade_tuning_profile_check for RHEL9

tests/foreman/maintain/test_upgrade.py

@@ -132,10 +132,12 @@ def test_negative_pre_upgrade_tuning_profile_check(request, custom_host):
     last_y_stream = last_y_stream_version(
         SATELLITE_VERSION if sat_version == 'stream' else sat_version
     )
+    # Updated test to do a z-stream upgrade, as Satellite on RHEL9 is supported from 6.16 onwards.
+    # Remove this condition once 6.16 is GA
+    if SATELLITE_VERSION == '6.16' and rhel_major == 9:
+        last_y_stream = '6.16'
     custom_host.download_repofile(product='satellite', release=last_y_stream)
-    custom_host.execute(
-        f'dnf -y module enable satellite:el{rhel_major} && dnf -y install satellite'
-    )
+    custom_host.install_satellite_or_capsule_package()
     # Install with development tuning profile to get around installer checks
     custom_host.execute(
         'satellite-installer --scenario satellite --tuning development',