CompatHelper: bump compat for DifferentiationInterface to 0.7, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the DifferentiationInterface package from 0.6.47 to 0.6.47, 0.7.
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.

[oscardssmith]

Testing locally shows

Split Parameters Test: Error During Test at /home/oscardssmith/.julia/packages/SafeTestsets/raUNr/src/SafeTestsets.jl:30
  Got exception outside of a @test
  LoadError: PreparationMismatchError (inconsistent types between preparation and execution):
    - f!: ✅
    - y: ✅
    - backend: ✅
    - x: ✅
    - contexts: ❌
      - prep: Tuple{DifferentiationInterface.Constant{ModelingToolkit.MTKParameters{Vector{Float64}, Vector{Float64}, Tuple{}, Tuple{}, Tuple{}, Tuple{}}}, DifferentiationInterface.Constant{Nothing}}
      - exec: Tuple{DifferentiationInterface.Constant{ModelingToolkit.MTKParameters{Vector{Float64}, Vector{Float64}, Tuple{}, Tuple{}, Tuple{}, Tuple{}}}, DifferentiationInterface.Constant{Float64}}
  If you are confident that this check is superfluous, you can disable it by running preparation with the keyword argument `strict=Val(false)` inside DifferentiationInterface.

on test/split_parameters.jl:172. Will investigate more tomorrow.