Add check for status equality in EnableBlackWhiteList method

- Introduce a condition to prevent unnecessary operations if the requested status matches the current status in the EnableBlackWhiteList method.
- Enhance the efficiency of the WAF service by avoiding redundant updates.

internal/service/waf.go

@@ -1119,6 +1119,10 @@ func (s *wafService) EnableBlackWhiteList(ctx context.Context, req *MatcherExpr)
 	if err != nil {
 		return err
 	}
+	// if status is the same, do nothing
+	if req.Status == int32(matcherExpr.Status) {
+		return nil
+	}
 
 	svcMap, err := s.getWafServiceMap(ctx, &MatcherExpr{
 		ID:     req.ID,