Auto merge of #18242 - joone:ellipse, r=jdm

Implement Ellipse Canvas 2D API

This patch needs to update rust-azure to 0.21.0.

- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #17598

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components/canvas_traits/canvas.rs

@@ -42,6 +42,7 @@ pub enum Canvas2dMsg {
     ClearRect(Rect<f32>),
     Clip,
     ClosePath,
+    Ellipse(Point2D<f32>, f32, f32, f32, f32, f32, bool),
     Fill,
     FillText(String, f64, f64, Option<f64>),
     FillRect(Rect<f32>),