Media: Remove error suppression in `wp_filesize()`.

Replace error suppressing in `wp_filesize()` with a `file_exists()` check before calling the native PHP `filesize()` function.

Follow up to [52837].

Props Cybr, johnbillion, spacedmonkey, antpb, azouamauriac, ironprogrammer, mukesh27, costdev, audrasjb, dlh.
Fixes #55678.
See #49412.

Built from https://develop.svn.wordpress.org/trunk@53372


git-svn-id: http://core.svn.wordpress.org/trunk@52961 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/functions.php

@@ -3503,7 +3503,7 @@ function wp_filesize( $path ) {
 		return $size;
 	}
 
-	$size = (int) @filesize( $path );
+	$size = file_exists( $path ) ? (int) filesize( $path ) : 0;
 
 	/**
 	 * Filters the size of the file.

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.1-alpha-53371';
+$wp_version = '6.1-alpha-53372';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.