Laravel v5.6.16 released

Just another Laravel release.

Added

• Support executing artisan commands using class names (#23764)
• Make View macroable (#23787)
• Added database Connection::unsetEventDispatcher() method (#23832)
• Support IAM role session token to be used with SES (#23766)

Changed

• Added displayable value to required_unless rule (#23833)

Fixed

• Fixed RedisQueue::blockingPop() check when using PhpRedis (#23757)