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ARROW-5453: [C++] Update to cmake-format=0.5.2 and pin again

I think we need to put cmake-format back into the doghouse until we observe a period of stability in the formatting algorithm

Author: Wes McKinney <wesm+git@apache.org>

Closes #4423 from wesm/ARROW-5453 and squashes the following commits:

40c4f8a43 <Wes McKinney> Update to cmake-format=0.5.2 and pin again