Bump ext/SDL from `e761770` to `ed86cec` #441

Job	Run time
Bindgen / Bindgen AST (Windows, windows-latest, win)	1m 22s
Bindgen / Bindgen AST (macOS, macos-latest, osx)	24s
Bindgen / Bindgen AST (Linux, ubuntu-latest, linux)	17s
Bindgen / Bindgen AST cross-platform	22s
Bindgen / Bindgen C#	11s
Build	0s
Commit	0s
	2m 36s

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