refact: Remove none check from all_subworkflows

Co-authored-by: Matthieu Muffato <[email protected]>

nf_core/components/update.py

@@ -882,7 +882,7 @@ def get_components_to_update(self, component):
             for subworkflow in installed_by:
                 if subworkflow != component:
                     for remote_url, content in mods_json["repos"].items():
-                        if (all_subworkflows := content.get("subworkflows")) is not None:
+                        if all_subworkflows := content.get("subworkflows"):
                             for _, details in all_subworkflows.items():
                                 if subworkflow in details:
                                     git_remote = remote_url