.ci: Use Github Actions to update translation source files

.ci/scripts/transifex/docker.sh

@@ -0,0 +1,25 @@
+#!/bin/bash -e
+
+# Setup RC file for tx
+cat << EOF > ~/.transifexrc
+[https://www.transifex.com]
+hostname = https://www.transifex.com
+username = api
+password = $TRANSIFEX_API_TOKEN
+EOF
+
+
+set -x
+
+echo -e "\e[1m\e[33mBuild tools information:\e[0m"
+cmake --version
+gcc -v
+tx --version
+
+mkdir build && cd build
+cmake .. -DENABLE_QT_TRANSLATION=ON -DGENERATE_QT_TRANSLATION=ON -DCMAKE_BUILD_TYPE=Release -DENABLE_SDL2=OFF
+make translation
+cd ..
+
+cd dist/languages
+tx push -s