update(registry): Bump to dagster-cloud 1.7.5 and use serverless (#38164)

## What
Update to use serverless dagster during deploy

## Why
May fix an issue with dagster and the slack resource where we (somehow unknown to dagster) are using the file resource manager by default

See https://airbytehq-team.slack.com/archives/C048P9GADFW/p1715276222825929 for context

Author: bnchrch