fix: Hacky fix for running the experimental scheduler when spawning task

[vrongmeal]

Until I figure out the best solution (which hopefully is close).

Pushing just to benchmark and test stuff successfully.

To run the tokio console debugger:

1. Download the CLI:

   cargo --locked tokio-console
   

2. Build/Run local with new just commands (along with --debug-tokio flag):

   just run-debug-tokio local --debug-tokio
   

NOTE: This builds in a new target directory: unstable-tokio-target so as to not mess up with existing target directory (which can cause issues with LSP etc.).

[tychoish]

is it possible to require/switch to the new scheduler via the command line.

also we should add a task to add a new matrix dimension to the SLT tests that would run with the new scheduler. (x pg x flight once this land and after this lands.)

[vrongmeal]

is it possible to require/switch to the new scheduler via the command line.

No, unfortunately have to set it for the session.