sat: disable deprecated warnings in cp_model.py #3511

Job	Run time
amd64•Docker•CMake•Glop	8m 32s
amd64•windows-latest•CMake•Glop	25m 41s
amd64•ubuntu-latest•CMake•Glop	9m 52s
arm64•macos-latest•CMake•Glop	12m 39s
amd64•macos-15-intel•CMake•Glop	19m 20s
	1h 16m 4s

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