CompatHelper: bump compat for AbstractAlgebra to 0.40, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the AbstractAlgebra package from 0.34, 0.35, 0.36, 0.37, 0.38, 0.39 to 0.34, 0.35, 0.36, 0.37, 0.38, 0.39, 0.40.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.

[Vectornaut]

Testing and merging this would be useful for me! I'm trying to develop AbstractAlgebra, and I'd prefer to work on a recent version, which currently conflicts with the requirements for Groebner.

[sumiya11]

Sure, thanks! I will make a release once tests pass

[sumiya11]

@Vectornaut I have just made a release (0.7.3). It should be compatible with the breaking change in AA.jl and Nemo.jl (Nemocas/AbstractAlgebra.jl#1597)