docs: add test_step_outcome input to CI upload step documentation (#10840)

Document the new `test_step_outcome` input added in Mergifyio/gha-mergify-ci#174.
This option lets users pass the test runner step's outcome so Mergify
can detect silent failures where the runner crashed but the JUnit
report appears clean.

Updated the shared upload step components and the quarantine setup
partial so the new input appears across all test framework pages.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: jd

src/components/MergifyCIUploadStep.astro

@@ -13,7 +13,8 @@ const { reportPath } = Astro.props;
   uses: mergifyio/gha-mergify-ci@v8
   with:
     token: \${{ secrets.MERGIFY_TOKEN }}
-    report_path: ${reportPath}`}
+    report_path: ${reportPath}
+    test_step_outcome: \${{ steps.tests.outcome }}`}
 	lang="yaml"
 	theme="slack-ochin"
 />
@@ -27,4 +28,11 @@ const { reportPath } = Astro.props;
 		<Code code={`report_path: ${reportPath}`} inline lang="yaml" theme="slack-ochin" />: Points to
 		where your JUnit file is located. Make sure it matches the path you set in your CI job.
 	</li>
+	<li>
+		<Code code={`test_step_outcome: \${{ steps.tests.outcome }}`} inline lang="yaml" theme="slack-ochin" />:
+		Passes the test runner step's outcome so Mergify can detect silent failures where the runner
+		crashed but the JUnit report appears clean. Add an <Code code="id" inline lang="yaml" theme="slack-ochin" /> (such
+		as <Code code="tests" inline lang="yaml" theme="slack-ochin" />) to your test runner step and
+		update the <Code code="steps.<id>.outcome" inline lang="yaml" theme="slack-ochin" /> reference to match.
+	</li>
 </ul>

src/components/MergifyCIUploadStepMatrix.astro

@@ -33,7 +33,8 @@ const { reportPath } = Astro.props;
   with:
     job_name: example_matrix (\${{ matrix.version }})
     token: \${{ secrets.MERGIFY_TOKEN }}
-    report_path: ${reportPath}`}
+    report_path: ${reportPath}
+    test_step_outcome: \${{ steps.tests.outcome }}`}
 	lang="yaml"
 	theme="slack-ochin"
 />

src/content/docs/ci-insights/test-frameworks/_gha_mergify_ci_quarantine_setup.mdx

@@ -1,4 +1,10 @@
 In order to benefit from CI Insights Quarantine, you need to add `continue-on-error: true`
-in your GitHb Actions step that execute your tests and generates the JUnit file.
+in your GitHub Actions step that executes your tests and generates the JUnit file.
 The step running the `gha-mergify-ci` action will determine the success or failure conclusion,
 considering quarantined tests.
+
+You should also pass `test_step_outcome: ${{ steps.tests.outcome }}` to the step that runs
+`mergifyio/gha-mergify-ci` (where `tests` is the `id` of your test runner step) to detect
+silent failures where the test runner crashed but the JUnit report appears clean. Without
+this input, a crash that produces a partial or empty report could be mistakenly treated as a
+success.