Update to 0.64.2-5-g2ea994e22

 - d/p/lib-Fix-switching-encodings.patch:
   Fix ability to switch between encodings in gnome-terminal
 - d/p/build-Fix-build-on-non-linux-systems.patch:
   Fix build on non-Linux kernels
 - d/p/fonts-More-metrics-sanity-checks.patch:
   Avoid descenders getting cut off
 - d/p/emulation-Fix-xterm-window-size-request-response.patch:
   Don't swap width and height when responding to an xterm window
   size request

Closes: #994417