small fix

.gitea/workflows/convert-html-docs.yaml

@@ -120,11 +120,11 @@ jobs:
           
           doc_exports_var = categories.get(docs_service_category, {})
           print(doc_exports_var)
+ 
+          # Write doc_exports_var to output & env file, serialized as JSON for easy later processing
+          import json
           with open(os.environ['GITHUB_OUTPUT'], 'a') as fh:
               fh.write(json.dump(doc_exports_var))
- 
-          # Write doc_exports_var to env file, serialized as JSON for easy later processing
-          import json
           with open('doc_exports_var.json', 'w') as jf:
               json.dump(doc_exports_var, jf)
           EOF