Add default editor to trust policy (awslabs#642)

**Which issue is resolved by this Pull Request:**
Resolves #

**Description of your changes:**


**Testing:**
- [ ] Unit tests pass
- [ ] e2e tests pass
- Details about new tests (If this PR adds a new feature)
- Details about any manual tests performed

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under the terms of the Apache 2.0 license.

tests/e2e/utils/pipelines/setup_pipelines_irsa.py

@@ -43,6 +43,7 @@ def profile_trust_policy(cluster, region, account_id):
                         f"{oidc_url}:aud": "sts.amazonaws.com",
                         f"{oidc_url}:sub": [
                             "system:serviceaccount:kubeflow:ml-pipeline",
+                            "system:serviceaccount:kubeflow-user-example-com:default-editor"
                         ],
                     }
                 },