.packit.yml: Replace RHEL-9.7.0-Nightly with RHEL-9.8.0-Nightly

Signed-off-by: Pablo Alessandro Santos Hugen <phugen@redhat.com>

Author: Tomcat-42

.packit.yml

@@ -33,11 +33,13 @@ _:
       epel-8-x86_64:
         distros: [RHEL-8.10.0-Nightly, RHEL-8.8.0-Nightly, RHEL-8.6.0-Nightly, RHEL-8.4.0-Nightly]
       epel-9-x86_64:
-        distros: [RHEL-9.7.0-Nightly, RHEL-9.6.0-Nightly, RHEL-9.4.0-Nightly, RHEL-9.2.0-Nightly, RHEL-9.0.0-Nightly]
+        distros: [RHEL-9.8.0-Nightly, RHEL-9.6.0-Nightly, RHEL-9.4.0-Nightly, RHEL-9.2.0-Nightly, RHEL-9.0.0-Nightly]
       epel-8-ppc64le:
         distros: [RHEL-8.10.0-Nightly, RHEL-8.8.0-Nightly, RHEL-8.6.0-Nightly, RHEL-8.4.0-Nightly]
       epel-9-ppc64le:
-        distros: [RHEL-9.7.0-Nightly, RHEL-9.6.0-Nightly, RHEL-9.4.0-Nightly, RHEL-9.2.0-Nightly, RHEL-9.0.0-Nightly]
+        distros: [RHEL-9.8.0-Nightly, RHEL-9.6.0-Nightly, RHEL-9.4.0-Nightly, RHEL-9.2.0-Nightly, RHEL-9.0.0-Nightly]
+      epel-9-s390x:
+        distros: [RHEL-9.8.0-Nightly]
       # rhel+epel-10-ppc64le:
       #   distros: [RHEL-10.0-Nightly]
     skip_build: true