Add tmt integration plan

See:
- https://github.com/teemtee/tmt/issues/4047
- https://github.com/teemtee/tmt/pull/4026

Signed-off-by: Cristian Le <git@lecris.dev>

.packit.yaml

@@ -132,6 +132,20 @@ jobs:
             context:
               revdeps: "yes"
 
+  - job: tests
+    identifier: tmt-revdeps
+    trigger: pull_request
+    packages: [podman-fedora]
+    notifications:
+      failure_comment:
+        message: "tmt tests failed for commit {commit_sha}. @lsm5, @psss, @thrix please check."
+    targets:
+      - fedora-latest
+    fmf_url: https://github.com/teemtee/tmt
+    fmf_path: /plans/friends
+    fmf_ref: main
+    tmt_plan: "/podman"
+
   - job: propose_downstream
     trigger: release
     update_release: false