Add proxmark3gui-git

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Checking proxmark3gui-git-0.2.8.r0.ge2fb189-1-x86_64.pkg.tar.zst
proxmark3gui-git E: ELF files outside of a valid path ('opt/').
proxmark3gui-git E: The SPDX license statement 'LGPL-2.1' should be formatted as 'LGPL-2.1-only' instead
proxmark3gui-git W: Dependency glibc detected and implicitly satisfied (libraries ['usr/lib/libc.so.6'] needed in files ['opt/Proxmark3GUI/bin/Proxmark3GUI'])
proxmark3gui-git W: Dependency gcc-libs detected and implicitly satisfied (libraries ['usr/lib/libstdc++.so.6', 'usr/lib/libgcc_s.so.1'] needed in files ['opt/Proxmark3GUI/bin/Proxmark3GUI'])
proxmark3gui-git W: Dependency qt5-base detected and implicitly satisfied (libraries ['usr/lib/libQt5Widgets.so.5', 'usr/lib/libQt5Core.so.5', 'usr/lib/libQt5Gui.so.5'] needed in files ['opt/Proxmark3GUI/bin/Proxmark3GUI'])