Fix create route path in rest resource plugin

Author: Chi-teck

templates/plugin/rest-resource/rest-resource.twig

@@ -21,7 +21,7 @@ use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
  *   label = @Translation("{{ plugin_label }}"),
  *   uri_paths = {
  *     "canonical" = "/api/{{ plugin_id|u2h }}/{id}",
- *     "https://www.drupal.org/link-relations/create" = "/api/{{ plugin_id|u2h }}"
+ *     "create" = "/api/{{ plugin_id|u2h }}"
  *   }
  * )
  *

tests/dcg/Generator/Plugin/_rest_resource.php

@@ -21,7 +21,7 @@
  *   label = @Translation("Foo"),
  *   uri_paths = {
  *     "canonical" = "/api/example-foo/{id}",
- *     "https://www.drupal.org/link-relations/create" = "/api/example-foo"
+ *     "create" = "/api/example-foo"
  *   }
  * )
  *