feat: remove redundant free disk space logging in upgrade script

- Delete unused "Free disk space:" echo statements in `bin/upgrade-odoo`
- Clean up console output during source and target environment display

bin/upgrade-odoo

@@ -81,7 +81,6 @@ upgrade-odoo() {
         echo "Postgres Container: $POSTGRES_CONTAINER"
         echo "Database: $DATABASE"
         echo "Temp Folder: $temp_folder"
-        echo "Free disk space: "
         echo ""
         echo "Target Enviroment"
         echo "-----------------"
@@ -94,7 +93,6 @@ upgrade-odoo() {
         echo "Postgres Container: $TARGET_POSTGRES_CONTAINER"
         echo "Database: $TARGET_DATABASE"
         echo "Temp Folder: $temp_folder"
-        echo "Free disk space: "
         echo ""
         echo "Upgrade Configuration"
         echo "---------------------"