dependencies: Upgrade to WebRender 0.64 (#31486)

This brings the version of WebRender used in Servo up-to-date with Gecko
upstream. The big change here is that HiDPI is no longer handled via
WebRender. Instead this happens via a scale applied to the root layer in
the compositor. In addition to this change, various changes are made to
Servo to adapt to the new WebRender API.

Co-authored-by: Mukilan Thiyagarajan <mukilan@igalia.com>

components/gfx/platform/macos/font_template.rs

@@ -125,8 +125,14 @@ impl FontTemplateData {
 
     /// Returns the native font that underlies this font template, if applicable.
     pub fn native_font(&self) -> Option<NativeFontHandle> {
-        self.ctfont(0.0)
-            .map(|ctfont| NativeFontHandle(ctfont.copy_to_CGFont()))
+        let local_identifier = match &self.identifier {
+            FontIdentifier::Local(local_identifier) => local_identifier,
+            FontIdentifier::Web(_) => return None,
+        };
+        Some(NativeFontHandle {
+            name: local_identifier.postscript_name.to_string(),
+            path: local_identifier.path.to_string(),
+        })
     }
 }