[fix] leftover from PR #4947 - ./manage vite.simple.build (#4953)

PR #4947 upgraded the pygment, but forgot to apply the change to the static
files::

    $ ./manage vite.simple.build

Related:

- https://github.com/searxng/searxng/pull/4947

client/simple/generated/pygments.less

@@ -1,6 +1,6 @@
 /*
    this file is generated automatically by searxng_extra/update/update_pygments.py
-   using pygments version 2.19.1
+   using pygments version 2.19.2
 */