scaleway: fix NoneType error in get_resources() (#11918)

* scaleway: fix NoneType error in get_resources() when API returns empty or non-JSON response

* add changelog fragment for #11918

* Update changelogs/fragments/11361-scaleway-get-resources-none-type.yml

Co-authored-by: Felix Fontein <felix@fontein.de>

---------

Co-authored-by: RealCharlesChia <RealCharlesChia@users.noreply.github.com>
Co-authored-by: Felix Fontein <felix@fontein.de>

changelogs/fragments/11361-scaleway-get-resources-none-type.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - scaleway_image_info, scaleway_ip_info, scaleway_organization_info, scaleway_security_group_info, scaleway_server_info, scaleway_snapshot_info, scaleway_volume_info - fix ``NoneType`` error when the Scaleway API returns an empty or non-JSON response body (https://github.com/ansible-collections/community.general/issues/11361, https://github.com/ansible-collections/community.general/pull/11918).

plugins/module_utils/_scaleway.py

@@ -240,10 +240,15 @@ class Scaleway:
         results = self.get(f"/{self.name}")
 
         if not results.ok:
+            api_response = results.json if results.json is not None else results.body
+            message = api_response.get("message") if isinstance(api_response, dict) else api_response
             raise ScalewayException(
-                f"Error fetching {self.name} ({self.module.params.get('api_url')}/{self.name}) [{results.status_code}: {results.json['message']}]"
+                f"Error fetching {self.name} ({self.module.params.get('api_url')}/{self.name}) [{results.status_code}: {message}]"
             )
 
+        if results.json is None:
+            raise ScalewayException(f"Scaleway API returned an empty or non-JSON response for {self.name}")
+
         return results.json.get(self.name)
 
     def _url_builder(self, path, params):