Bump ext/SDL from `e761770` to `ed3fad1` #390

Job	Run time
Bindgen / Bindgen AST (Windows, windows-latest, win)	1m 24s
Bindgen / Bindgen AST (macOS, macos-latest, osx)	36s
Bindgen / Bindgen AST (Linux, ubuntu-latest, linux)	39s
Bindgen / Bindgen AST cross-platform	20s
Bindgen / Bindgen C#	8s
Build	0s
Commit	0s
	3m 7s

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