45.beta2 (née 45.gamma) - 15 August 2023

Distros should read the following:
https://discourse.gnome.org/t/psa-for-distros-brltty-should-be-built-using-cython-0-29-x-not-cython-3

Bug Fix:

* Do not crash when BrlApi.Connection() crashes as a consequence of
  BrlTTY having been built with Cython 3.

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