Hastexo-xblock

-------------------------

* [Enhancement] Add an option to override the `suspend_timeout`
global setting via an XBlock attribute, in seconds.

-------------------------

* [Bug fix] Fix migrations around the `lab_usage_limit` feature
introduced in 6.1.0. This unbreaks migrations in the event that some
stacks cannot be linked to an existing user account.

-------------------------

* [Bug fix] Bring back `asgiref` constraint and lower
`Django` constraint. These need to be
in sync with the `channels` version requirements.

-------------------------

* [Bug fix] Add a check to the `add_user_foreign_key` migration
file to find stacks that are missing a link to a real user account.
If such stack(s) exist, do not attempt to apply the migration,
instead raise an exception and provide an error message with
guidance on how to proceed.

-------------------------

* [Enhancement] Install a newer version of the Paramiko library.
* [Bug fix] Set upper bounds for the `install_requires` list in
`setup.py`, to match those set in `requirements.txt`. This fixes a
version incompatibility problem when the package is installed by pip
version 20 and earlier, which would lead to
`pkg_resources.ContextualVersionConflict` errors when deployed on
Open edX Maple.
* [Testing] Enhance the test matrix to include the pip versions used
in Open edX Maple (20.0.2) and Nutmeg (22.0.4), and use pipdeptree
to automatically flag dependency version inconsistencies.

-------------------------
* [Enhancement] Add `hidden` option for spinning up a lab
environment in the background while the lab itself is hidden.