message: Fix .deb constraint so it works with 0.13-rc2
diff: @@ -11,7 +11,7 @@ set(CPACK_PACKAGING_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX})
  # CPack variables for Debian packages
  set(CPACK_DEBIAN_PACKAGE_DEPENDS
  - "open-enclave (>=0.13.0), libuv1 (>= 1.18.0), libc++1-8, libc++abi1-8"
  + "open-enclave (>=0.12.9), libuv1 (>= 1.18.0), libc++1-8, libc++abi1-8"
  )
  set(CPACK_DEBIAN_FILE_NAME DEB-DEFAULT)
  