Fonts: Fix font_style typo in wp_print_font_faces().

Changes `font_style` to `font-style` to reflect the CSS property.

Follow-up to [56540].

Props tmatsuur, rajinsharwar, audrasjb. 
Fixes #59858.
Built from https://develop.svn.wordpress.org/trunk@57240


git-svn-id: http://core.svn.wordpress.org/trunk@56746 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/fonts.php

@@ -22,7 +22,7 @@
  *         @type array $font_variation {
  *             @type string          $font-family             The font-family property.
  *             @type string|string[] $src                     The URL(s) to each resource containing the font data.
- *             @type string          $font_style              Optional. The font-style property. Default 'normal'.
+ *             @type string          $font-style              Optional. The font-style property. Default 'normal'.
  *             @type string          $font-weight             Optional. The font-weight property. Default '400'.
  *             @type string          $font-display            Optional. The font-display property. Default 'fallback'.
  *             @type string          $ascent-override         Optional. The ascent-override property.

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.5-alpha-57239';
+$wp_version = '6.5-alpha-57240';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.