Use VERSION env var in fpm command

.github/workflows/release.yml

@@ -60,7 +60,7 @@ jobs:
           -m k.dries@protonmail.com \
           --description "Gotify Tray. A tray notification application for receiving messages from a Gotify server." \
           --category internet \
-          --version "${{github.ref_name#v}}" \
+          --version "$VERSION" \
           --license GPLv3
     - name: Check deb file
       run: ls -la dist/