fix: rename ambiguous variable l to lbl in site24x7 provider (E741)

Author: DragonBot00

keep/providers/site24x7_provider/site24x7_provider.py

@@ -236,7 +236,7 @@ def _format_alert(
 
         labels = event.get("LABELS", "")
         if isinstance(labels, str) and labels:
-            labels = [l.strip() for l in labels.split(",") if l.strip()]
+            labels = [lbl.strip() for lbl in labels.split(",") if lbl.strip()]
         elif not isinstance(labels, list):
             labels = []