docs(extras): deprecate scriptDataOpts (#1425)

* docs(extras): deprecate scriptDataOpts

* show deprecation notice before prop description

docs/config/extras.md

@@ -130,6 +130,10 @@ An experimental flag that when set to `true`, aligns the behavior of invoking th
 
 ### scriptDataOpts
 
+:::caution
+This option has been deprecated and will be removed in the next major Stencil release.
+:::
+
 It is possible to assign data to the actual `<script>` element's `data-opts` property, which then gets passed to Stencil's initial bootstrap. This feature is only required for very special cases and rarely needed. When set to `false` it will not read this data. Defaults to `false`.
 
 ### slotChildNodesFix