Bump spree_gateway from 3.6.0 to 3.6.1
Bump spree_gateway from 3.6.0 to 3.6.1

Bumps [spree_gateway](https://spreecommerce.org) from 3.6.0 to 3.6.1.

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
spark-solutions/spark-starter-kit,spark-solutions/spark-starter-kit,spark-solutions/spark-starter-kit