Entity BN - Search business endpoint shows warning as deprecated.

See also #23555 and #23558.

**THE DESCRIPTION BELOW IS FOR THIS BUG IN CREATE UI, BUT IT ALSO NEEDS TO BE FIXED IN ENTITY BN.**

**Describe the bug in the current situation**
While filing for a Cont In filing and searching for an Extra Provincial Company, the Search business endpoint shows the warning saying it's deprecated.

Steps to reproduce the behavior:
1. Go to 'https://test.account.bcregistry.gov.bc.ca/'
2. Start filing a Cont In Filing
3. Open the network tab and search for an xpro company
4. In the Preview section of the API response the warning message shows up as depreciated

**Screenshots/ Visual Reference/ Source**

To Do List:

- [ ] Update url to use new endpoint
- [ ] Apply any changes
- [ ] Verify url param and response and update as needed

Start at the test account site and reproduce an Extra Provincial Company search during a Cont In Filing with the browser network tab open. Inspect the Entity BN request, including its URL, parameters, and response warning. Done means the search uses the current endpoint and the response no longer reports it as deprecated.

Written by the indexing model from the issue text.