tests for downstream breakage

[Krastanov]

We should probably start running tests against downstream packages given #80

Here is a typical github action config for downstream tests https://github.com/qojulia/QuantumInterface.jl/blob/main/.github/workflows/breakage.yml

An incomplete list (please edit and add) of packages that can be added

• [ ] ConcurrentSim (the initial reason for the creation of ResumableFunctions)
• [ ] QuantumSavory (the reason I am involved with ResumableFunctions -- a very heavy package though, so having a subset of its tests is something I need to look into)
• [ ] FoldRNA (where issue #80 was detected)
• [ ] Fronts (uses delegation via @yieldfrom)

[gerlero]

This would be interesting.

Added Fronts to the list of packages that might be tested.