fix: radio cursor style #4997

close #4997

Author: tangjinzhou

components/radio/style/index.less

@@ -31,7 +31,9 @@
   align-items: center;
   margin-right: @radio-wrapper-margin-right;
   cursor: pointer;
-
+  &-disabled {
+    cursor: not-allowed;
+  }
   &::after {
     display: inline-block;
     width: 0;