cad/py-ocp: Revert update to 7.5.2 to unbreak the ports tree

cad/py-ocp/Makefile

cad/py-ocp/distinfo

cad/py-ocp/files/cpatch-OCCT_OpenGl__HaltonSampler.hxx

cad/py-ocp/files/patch-FindOpenCascade.cmake

cad/py-ocp/files/patch-Standard.cpp

cad/py-ocp/files/patch-dump__symbols.py

cad/py-ocp/files/patch-ocp.toml

cad/py-ocp/files/patch-opencascade_Standard__Time.hxx

cad/py-ocp/files/patch-templates_CMakeLists.j2

cad/py-ocp/pkg-message