chore: update PRs checklist to also add/update E2E tests (aws-amplify#13543)

* chore: update PRs checklist to also add/update E2E tests

* Update .github/PULL_REQUEST_TEMPLATE.md

Co-authored-by: Hui Zhao <[email protected]>

* address feedback

---------

Co-authored-by: Ashwin Kumar <[email protected]>
Co-authored-by: Hui Zhao <[email protected]>

Author: 3 people

.github/PULL_REQUEST_TEMPLATE.md

@@ -24,8 +24,15 @@ the requirements below.
 
 - [ ] PR description included
 - [ ] `yarn test` passes
-- [ ] Tests are [changed or added](https://github.com/aws-amplify/amplify-js/blob/main/CONTRIBUTING.md#steps-towards-contributions)
+- [ ] Unit Tests are [changed or added](https://github.com/aws-amplify/amplify-js/blob/main/CONTRIBUTING.md#steps-towards-contributions)
 - [ ] Relevant documentation is changed or added (and PR referenced)
+
+
+
+#### Checklist for repo maintainers
+<!-- Remove items that do not apply. For completed items, change [ ] to [x]. -->
+
+- [ ] Verify E2E tests for existing workflows are working as expected or add E2E tests for newly added workflows
 - [ ] New source file paths included in this PR have been added to CODEOWNERS, if appropriate
-      
+
 By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.