## Description
This PR introduces a Cypress test to validate the functionality of
uploading files larger than 20MB using the File Picker widget and a POST
API.
Tests: https://github.com/appsmithorg/appsmith/issues/34123
## Automation
/ok-to-test tags="@tag.Datasource, @tag.Sanity"
### 🔍 Cypress test results
<!-- This is an auto-generated comment: Cypress test results -->
> [!TIP]
> 🟢🟢🟢 All cypress tests have passed! 🎉🎉🎉
> Workflow run:
<https://github.com/appsmithorg/appsmith/actions/runs/12633295995>
> Commit: 5ee713a15beabfaf8f7fec613fb29cfcc1ee2759
> <a
href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=12633295995&attempt=1"
target="_blank">Cypress dashboard</a>.
> Tags: `@tag.Datasource, @tag.Sanity`
> Spec:
> <hr>Mon, 06 Jan 2025 14:20:44 UTC
<!-- end of auto-generated comment: Cypress test results -->
## Communication
Should the DevRel and Marketing teams inform users about this change?
- [ ] Yes
- [x] No
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **New Tests**
- Added a new Cypress test suite for validating file uploads larger than
20MB
- Test covers file upload via File Picker widget with multipart form
data
- Verifies successful file upload and API response for large files
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
