Cursor Agent Integration Problem - When adding a new api key that just got created it fails with "Invalid Cursor API key"

### Environment

SaaS (https://sentry.io/)

### Steps to Reproduce

1. Go to https://cursor.com/dashboard?tab=integrations and create a new apiKey
2. Go to https://totem.sentry.io/organizations/totem/integrations/cursor/setup/? and paste the newly created api key and click on "Connect Cursor Agent"
3. Fails with Invalid Cursor API key

### Expected Result

Should just connect the Cursor Agent

### Actual Result

### Product Area

Settings - Integrations

### Link

https://totem.sentry.io/organizations/totem/integrations/cursor/setup/?

### DSN

_No response_

### Version

_No response_