Docs: Fix $feature parameter type in block_has_support().

In `block_has_support()` docblock, the `$feature` parameter is an array, not a string.

Props Soean, audrasjb.
Fixes #56307.
See #55646.


git-svn-id: https://develop.svn.wordpress.org/trunk@53799 602fd350-edb4-49c9-b593-d223f7449a82

Author: audrasjb

src/wp-includes/blocks.php

@@ -1017,7 +1017,7 @@ function unregister_block_style( $block_name, $block_style_name ) {
  * @since 5.8.0
  *
  * @param WP_Block_Type $block_type Block type to check for support.
- * @param string        $feature    Name of the feature to check support for.
+ * @param array         $feature    Path to a specific feature to check support for.
  * @param mixed         $default    Optional. Fallback value for feature support. Default false.
  * @return bool Whether the feature is supported.
  */