tests: add integration test for pull_request_target

.github/workflows/base-test-pr-trigger.yml

@@ -0,0 +1,22 @@
+on: pull_request_target
+jobs:
+  container-tests:
+    runs-on: ubuntu-22.04
+    name: "Smoke test for tfaga - pull_request_target"
+    permissions:
+      contents: read
+      pull-requests: write
+      statuses: write
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Run the tests
+        uses: ./
+        with:
+          api_key: ${{ secrets.TF_PUBLIC_API_KEY }}
+          git_url: "https://github.com/sclorg/testing-farm-as-github-action"
+          git_ref: "main"
+          tmt_plan_regex: "smoke_plan"
+          pull_request_status_name: "Smoke test - pull_request_target"
+          update_pull_request_status: "true"