gh-16484: Fix collisions between Checkbutton and ttk.Checkbutton defa… #43

Job	Run time
i686-pc-windows-msvc/msvc (Debug)	17m 4s
i686-pc-windows-msvc/msvc (Release)	22m 2s
x86_64-pc-windows-msvc/msvc (Debug)	16m 4s
x86_64-pc-windows-msvc/msvc (Release)	20m 18s
aarch64-pc-windows-msvc/msvc (Debug)	4m 31s
aarch64-pc-windows-msvc/msvc (Release)	5m 34s
x86_64-apple-darwin/clang (Debug)	10m 41s
x86_64-apple-darwin/clang (Release)	13m 22s
aarch64-apple-darwin/clang (Debug)	8m 36s
aarch64-apple-darwin/clang (Release)	13m 10s
x86_64-unknown-linux-gnu/gcc (Debug)	6m 58s
x86_64-unknown-linux-gnu/gcc (Release)	17m 55s
x86_64-unknown-linux-gnu/clang (Debug)	7m 57s
x86_64-unknown-linux-gnu/clang (Release)	13m 20s
aarch64-unknown-linux-gnu/gcc (Debug)	56m 11s
aarch64-unknown-linux-gnu/gcc (Release)	45m 20s
aarch64-unknown-linux-gnu/clang (Debug)	52m 32s
aarch64-unknown-linux-gnu/clang (Release)	29m 48s
	6h 1m 23s

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