changed to tar.gz to match with how Tag was releasing in tar.gz, will be less confusing to end users (no clear advantage to using bz over gz)

.gitlab-ci.yml

@@ -84,7 +84,7 @@ packaging:
     - echo "Building native packages"
     - npm install --prefer-offline
     - npm run dist
-    - for dir in dist/*-linux-* ; do if [ -d $dir ] ; then tar -C dist -cjf ${dir}.tar.bz `basename $dir` ; fi ; done
+    - for dir in dist/*-linux-* ; do if [ -d $dir ] ; then tar -C dist -czf ${dir}.tar.gz `basename $dir` ; fi ; done
     - (cd dist ; mv *.exe *-mac-x64.zip *.tar.bz ../build)
     - echo "Building Debian packages"
     - dpkg-buildpackage -uc -us