ci: Enable tests on aarch64 with packit and tmt

Author: vojtechtrefny

.packit.yaml

@@ -96,7 +96,10 @@ jobs:
 - job: tests
   trigger: pull_request
   targets:
-    - fedora-latest-stable
+    - fedora-latest-x86_64
+    - fedora-latest-aarch64
+    - fedora-latest-stable-x86_64
+    - fedora-latest-stable-aarch64
   branch: master
 
 - job: tests