CI Linux: XIMEA install workaround

XIMEA instller is currenctly broken (missing file bin/streamViewer.64
in the package). See failed run:
<https://github.com/CESNET/UltraGrid/actions/runs/6589401467/job/17903829041>

.github/scripts/Linux/install_others.sh

@@ -10,6 +10,7 @@ install_ximea() {
         curl -LO https://www.ximea.com/downloads/recent/XIMEA_Linux_SP.tgz
         tar xzf XIMEA_Linux_SP.tgz
         cd package
+        touch bin/streamViewer.64 # TOREMOVE
         sudo ./install -noudev
 }