Add gating configuration

.fmf/version

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

gating.yaml

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+--- !Policy
+
+product_versions:
+  - rhel-8
+decision_context: osci_compose_gate
+rules:
+  - !PassingTestCaseRule {test_case_name: osci.brew-build.tier0.functional}
+

plan.fmf

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+execute:
+  how: tmt
+discover:
+  how: shell
+  dist-git-source: true
+  tests:
+  - name: bundled tests
+    require:
+    - python3.12-pycparser
+    - gcc
+    test: |
+      cd $(dirname $TMT_SOURCE_DIR/pycparser-*/tests) &&
+      rm -rf pycparser &&
+      python3.12 tests/all_tests.py