[Endgame testing] Changing kernel disables debugging

[meganrogge]

Testing microsoft/vscode#127362

Expected behaviour

I debug in the venv kernel, switch to a diff't kernel, debugging is disabled. I switch back to the venv kernel and debug again.

Actual behaviour

I debug in the venv kernel, switch to a diff't kernel, debugging is still enabled, but doesn't do anything. I switch back to the venv kernel and can no longer debug.

[DavidKutu]

TODO: Check the context keys when changing kernels

[DavidKutu]

fixed alongside #7056.

If you don't have the requirements, a modal will ask you to update.