Use matching compose for testing EPEL-10-branched builds

Signed-off-by: Nikola Forró <nforro@redhat.com>

Author: nforro

.packit.yaml

@@ -189,8 +189,13 @@ jobs:
   - <<: *tests
     packages: [specfile-epel10]
     tmt_plan: "smoke|full"
+    use_internal_tf: true
     targets:
-      - epel-10-all
+      epel-10-x86_64:
+        distros: [CentOS-Stream-10]
+      rhel+epel-10-x86_64:
+        # Y-release needs to be bumped when epel-10-branched advances
+        distros: [RHEL-10.1-Nightly]
 
   - &propose_downstream
     job: propose_downstream