Fedora,packit: automatically update and build in rawhide

Signed-off-by: Tomas Tomecek <ttomecek@redhat.com>

Author: TomasTomecek

.packit.yaml

@@ -12,3 +12,11 @@ jobs:
     trigger: pull_request
     targets:
       - fedora-all
+  - job: propose_downstream
+    trigger: release
+    dist_git_branches:
+      - fedora-rawhide
+  - job: koji_build
+    trigger: commit
+    dist_git_branches:
+      - fedora-rawhide