This replaces assertPageSave with AssertAutoSave from Ts helper
EE PR: https://github.com/appsmithorg/appsmith-ee/pull/4345
/ok-to-test tags="@tag.All"
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
- **Tests**
- Updated Cypress tests to use `agHelper.AssertAutoSave()` instead of
`cy.assertPageSave()` for validating auto-save functionality. This
change enhances the reliability of auto-save assertions across multiple
test scripts.
<!-- end of auto-generated comment: release notes by coderabbit.ai
--><!-- This is an auto-generated comment: Cypress test results -->
> [!TIP]
> 🟢🟢🟢 All cypress tests have passed! 🎉🎉🎉
> Workflow run:
<https://github.com/appsmithorg/appsmith/actions/runs/9370053807>
> Commit: ca1541550f26d71a9c5991b1eca4f42f607fe659
> Cypress dashboard url: <a
href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=9370053807&attempt=2"
target="_blank">Click here!</a>
<!-- end of auto-generated comment: Cypress test results -->
