treat service category param case-insensitive

inventory_provider/routes/poller.py

@@ -91,7 +91,7 @@ def service_category_interfaces(category):
     result = []
 
     r = common.get_current_redis()
-    for k in r.scan_iter(f'interface-services:{category}:*'):
+    for k in r.scan_iter(f'interface-services:{category.lower()}:*'):
         ifc = r.get(k.decode('utf-8'))
         result.append(json.loads(ifc.decode('utf-8')))