Pick higher ports for TensorDock, bump gpuhunt version

Force cgroupfs in TensorDock

GCP quotas: use proper region-key (dstackai#741)

- Fixed `reference/api/python` (style and content)

- Renamed `guides/clouds` to `configuration/server`
- Refactored the CTA on the home page

Remove legacy run configuration fields (dstackai#725)

* Remove legacy run configuration fields

* Document profiles

* Generate Union types in reference

* Fix tests

Improve backends configuration via YAML (dstackai#719)

* Rename config.yaml to config.yml

* Improve backends configuration via yaml

* Update clods.md guide

* Update server/config.yml reference

* Import Annotated from typing_extensions

Drop python3.7 in vm images

Do not pass --dev to shim in release

Do not test on windows for release

Build release runner only for linux/amd64