Fix formatting in cd_prod.yml exclude section (#119)

Guns'n'Roses problems (/ went missing)

Author: mdondrup

.github/workflows/cd_prod.yml

@@ -77,7 +77,7 @@ jobs:
             --exclude='.github/' \
             --exclude='.env' \
             --exclude='Python/.venv/' \
-            --exclude='bootstrap/cache/'
+            --exclude='bootstrap/cache/' \
             --exclude='public/robots.txt' \
             --exclude='node_modules/' \
             --exclude='vendor/' \