fix: re-enable exit hanler test. (#11100)

Signed-off-by: Liav Weiss (EXT-Nokia) <liav.weiss.ext@nokia.com>
Co-authored-by: Liav Weiss (EXT-Nokia) <liav.weiss.ext@nokia.com>

Author: liavweiss

.github/workflows/e2e-test.yaml

@@ -153,9 +153,8 @@ jobs:
       - name: Basic sample tests - sequential
         run: pip3 install -r ./test/sample-test/requirements.txt && pip3 install kfp~=2.0 && python3 ./test/sample-test/sample_test_launcher.py sample_test run_test --namespace kubeflow --test-name sequential --results-gcs-dir output
 
-#      Disabled while https://github.com/kubeflow/pipelines/issues/10885 is not resolved
-#      - name: Basic sample tests - exit_handler
-#        run: pip3 install -r ./test/sample-test/requirements.txt && pip3 install kfp~=2.0 && python3 ./test/sample-test/sample_test_launcher.py sample_test run_test --namespace kubeflow --test-name exit_handler --results-gcs-dir output
+      - name: Basic sample tests - exit_handler
+        run: pip3 install -r ./test/sample-test/requirements.txt && pip3 install kfp~=2.0 && python3 ./test/sample-test/sample_test_launcher.py sample_test run_test --namespace kubeflow --test-name exit_handler --results-gcs-dir output
 
       - name: Collect test results
         if: always()