[FEATURE]: Add `--dry-run` flag to `push`

### Describe what you want

From drizzle-kit-mirror repo: https://github.com/drizzle-team/drizzle-kit-mirror/issues/165.

> A great feature would be a way to do push as a "dry run" to let you know if there are blocking changes (like column rename) that might lead to data losses. If you want to follow the [expand and contract pattern](https://www.prisma.io/dataguide/types/relational/expand-and-contract-pattern), this would be a good check in CI to ensure that it will work properly.