Bug#1112191: Please backport freerdp3-3.20 to trixie

[Wolfgang Glas <wolfgang.glas@iteg.at>]

Dear freerdp3 maintainers,

  I have various problem with freerdp3-3.15.0 as shipped with trixie:

- wlfreerdp show display artifacts (supposedly off-by-one error)
- sdl-freerdp terminates when I press the Tab key

The changelogs of freerdp3 since 3.15 suggest, tahat a lot of bigfixing 
took place for the wayland and SDL implementations.

I also saw many CVEs fixed in freerdp-3.20, so all in all backporting 
freerdp3-3.20.x to trixie seem to be a benefitial effort.

  Thanks in advance,

    Wolfgang

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