Site Health: Move "The folder ... was detected as being under version control" message from failure to warning.

Props afragen, davidbaumwald.
Fixes #47982.
Built from https://develop.svn.wordpress.org/trunk@46281


git-svn-id: http://core.svn.wordpress.org/trunk@46093 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/class-wp-site-health-auto-updates.php

@@ -287,7 +287,7 @@ class WP_Site_Health_Auto_Updates {
 					'<code>' . $check_dir . '</code>',
 					"<code>$vcs_dir</code>"
 				),
-				'severity'    => 'fail',
+				'severity'    => 'warning',
 			);
 		}
 

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.3-alpha-46280';
+$wp_version = '5.3-alpha-46281';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.