[FIX] website: restore CDN for lazy assets

The CDN implementation for resources works by matching well-know attributes
(`href`, `src`, `action`) that hold URLs matching the CDN filters and injects
the CDN prefix. However 13.0 introduced lazy loading for assets in #32181,
so the attributes are now prefixed with `data-` and replaced at runtime.

This PR updates the tag matching in order to cover both variants of
attribute names.

closes odoo/odoo#54156

X-original-commit: 6d4b5fcd
Signed-off-by: Toufik Benjaa (tbe) <tbe@odoo.com>

addons/website/models/ir_qweb.py

@@ -68,9 +68,13 @@ class QWeb(models.AbstractModel):
         if not website.cdn_activated:
             return atts
 
-        if name and name in atts:
+        data_name = f'data-{name}'
+        if name and (name in atts or data_name in atts):
             atts = OrderedDict(atts)
-            atts[name] = website.get_cdn_url(atts[name])
+            if name in atts:
+                atts[name] = website.get_cdn_url(atts[name])
+            if data_name in atts:
+                atts[data_name] = website.get_cdn_url(atts[data_name])
         if isinstance(atts.get('style'), str) and 'background-image' in atts['style']:
             atts = OrderedDict(atts)
             atts['style'] = re_background_image.sub(lambda m: '%s%s' % (m.group(1), website.get_cdn_url(m.group(2))), atts['style'])