fix(forms): Include :orgId in new provider form route for search

[sentry]

This PR fixes an issue where navigating to the "New Provider" form via Settings Search resulted in a "Route not found" error.

The root cause was that the <FormSearch> component in static/app/views/settings/featureFlags/changeTracking/newProviderForm.tsx defined its route prop as /settings/feature-flags/change-tracking/new-provider/, omitting the required :orgId segment.

This incomplete route was then picked up by the Settings Search index (generatedFieldRegistry.ts), leading to an invalid URL being generated for the search result.

The fix involves:

1. Updating the route prop in newProviderForm.tsx to /settings/:orgId/feature-flags/change-tracking/new-provider/.
2. Regenerating and committing the generatedFieldRegistry.ts file to reflect this change.

This ensures that the Settings Search correctly registers and generates valid URLs for the "New Provider" form.

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Fixes JAVASCRIPT-3B75

_{Comment @sentry <feedback> on this PR to have Autofix iterate on the changes.}