cmake/BuildPCRE2.cmake: use INSTALL_DIR instead of INSTALL_COMMAND, fix WIN32 tests [ci skip]
cmake/BuildPCRE2.cmake: use INSTALL_DIR instead of INSTALL_COMMAND, fix WIN32 tests [ci skip]

jddurand/c-marpaESLIF,jddurand/c-marpaESLIF,jddurand/c-marpaESLIF,jddurand/c-marpaESLIF,jddurand/c-marpaESLIF