fix(openapi): uri variable default description

[VincentLanglet]

Q	A
Branch?	main for features / current stable version branch for bug fixes
Tickets	Closes #..., closes #...
License	MIT
Doc PR	api-platform/docs#...

Given the route

new GetCollection(
            uriTemplate: '/workspaces/{workspaceUuid}/invitations',
            uriVariables: [
                'workspaceUuid' => new Link(toProperty: 'workspace', fromClass: Workspace::class),
            ],

The default generated description of the uriVariable description is Invitation identifier while it should be Workspace identifier.