Repair Organisation get by name URL.

[queenvictoria]

Changes

Please describe both what is changing and why this is important. Include:

• Endpoints added, deleted, deprecated, or changed
  There is an error in organizations.get_organization_by_name. The path from the docs should be /api/v2/organizations/name/{name}. The current implementation, however, just uses the default /api/v2/organizations and sends the name parameter (which is invalid and throws an error).

References

Please include relevant links supporting this change such as a:

• Pull request Retrieving an existing organisation by name fails with error #268
• API documentation

Testing

• This change adds unit test coverage
• This change adds integration test coverage
• This change has been tested on the latest version of the platform/language or why not

I'm sorry but I can't see how to run the existing test. Please point me to the instructions and I'll update the PR.

Checklist

• I have read the Auth0 general contribution guidelines
• I have read the Auth0 Code of Conduct
• All existing and new tests complete without errors

[lbalmaceda]

Thanks for catching this!