Doc: Track file downloads via plausible (GH-138393)

(cherry picked from commit e4e2390)

Co-authored-by: Jacob Coffee <jacob@z7x.org>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>

Author: 2 people

Doc/tools/templates/layout.html

@@ -28,7 +28,7 @@
 {% block extrahead %}
     {% if builder == "html" %}
       {% if enable_analytics %}
-      <script defer data-domain="docs.python.org" src="https://analytics.python.org/js/script.outbound-links.js"></script>
+      <script defer file-types="bz2,epub,zip" data-domain="docs.python.org" src="https://analytics.python.org/js/script.file-downloads.outbound-links.js"></script>
       {% endif %}
       <link rel="canonical" href="https://docs.python.org/3/{{pagename}}.html">
       {% if pagename == 'whatsnew/changelog' and not embedded %}