[3.12] Doc: Use the short version for daily downloads (GH-124602) (#124611)

Doc: Use the short version for daily downloads (GH-124602)
(cherry picked from commit 2c472d3)

Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>

Author: miss-islington

Doc/tools/templates/download.html

@@ -13,7 +13,7 @@
 {% endif %}
 
 {% block body %}
-<h1>{% trans %}Download Python {{ release }} Documentation{% endtrans %}</h1>
+<h1>{% trans %}Download Python {{ dl_version }} Documentation{% endtrans %}</h1>
 
 {% if last_updated %}<p><b>{% trans %}Last updated on: {{ last_updated }}.{% endtrans %}</b></p>{% endif %}