Assigns a specific user group to a specific resource group.

This endpoint assigns a specific user group to a specific resource group, granting the group access to specific resources.</br></br>Key features include:</br></br>- Clear success messaging: Returns a 204 success code with a confirmation message indicating the successful completion of the requested action.</br>- Comprehensive error handling: Returns 400 and 404 error codes with clear descriptions when requests fail.</br>- Flexible assignment handling: Facilitates the assignment of a specific user group, ensuring precise control and streamlined management across the system.</br>- Targeted data assignment: Leverages the resourceGroupId and userGroupId parameters in the URL path to assign data to the specified resource group, ensuring accurate and focused allocations.