Add tmt gating plan

Cherry-picked from python3.11-cffi 015ff1aef5962fe68b79402c358ac8e0491d87d3
015ff1aef5

.fmf/version

@@ -0,0 +1 @@
+1

gating.yaml

@@ -0,0 +1,7 @@
+--- !Policy
+
+product_versions:
+  - rhel-9
+decision_context: osci_compose_gate
+rules:
+  - !PassingTestCaseRule {test_case_name: osci.brew-build.tier0.functional}

plan.fmf

@@ -0,0 +1,18 @@
+execute:
+  how: tmt
+discover:
+  how: shell
+  dist-git-source: true
+  tests:
+  - name: bundled tests
+    require:
+    - python3.12-pytest
+    - python3.12-cffi
+    - python3.12-devel
+    - python3.12-setuptools
+    - patch
+    - gcc-c++
+    test: |
+      cd $(dirname $TMT_SOURCE_DIR/cffi-*/testing) &&
+      rm -rf cffi* &&
+      pytest-3.12 testing/cffi0