MDL-81203 tool_customlang: Bump ROUGH_NUMBER_OF_STRINGS from 32K to 33K

Periodical check, we have passed the 32K, time to bump to next
thousand, 33K. Not much else to say.

admin/tool/customlang/locallib.php

@@ -36,7 +36,7 @@ class tool_customlang_utils {
      * Rough number of strings that are being processed during a full checkout.
      * This is used to estimate the progress of the checkout.
      */
-    const ROUGH_NUMBER_OF_STRINGS = 32000;
+    const ROUGH_NUMBER_OF_STRINGS = 33000;
 
     /** @var array cache of {@link self::list_components()} results */
     private static $components = null;