Update alloy.j2 to correctly embed env file variable options (#344)

Author: voidquark

roles/alloy/templates/alloy.j2

@@ -6,5 +6,5 @@ CONFIG_FILE="/etc/alloy/config.alloy"
 RESTART_ON_UPGRADE=true
 
 {% for key, value in alloy_env_file_vars.items() %}
-{{ key}}={{value}}
+{{ key}}="{{value}}"
 {% endfor %}