New version: ROOT v0.4.0

[JuliaRegistrator]

• Registering package: ROOT
• Repository: https://github.com/JuliaHEP/ROOT.jl
• Created by: @grasph
• Version: v0.4.0
• Commit: 99bdcc01a79842d5e6a7491342dfe3bf6ca74463
• Reviewed by: @grasph
• Reference: Registration in the general registry JuliaHEP/ROOT.jl#22 (comment)
• Description: CERN ROOT compatiblility for Julia
• Release notes:

- automatic cast of `TObject*`: dereferencing a `TObject` reference returns an instance of the actual derived class. 
- In addition, this release julia iterators for ROOT collections (`TSeqCollection` and derived classes). Coverage of the ROOT core/base package as been extended to the full set of classes.
- Attributes of histograms (line style, line color, etc.), and other drawables, can now be set thanks to the mapping of multiple inheritance provided by the release 1.7.0 of WrapIt: C++ ROOT code uses multiple inheritance for this, which was not mapped to Julia in previous releases.

## Breaking changes

- none

----
Contributors to code update respect to previous release: Philippe Gras.

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[grasph]

It looks like I found the issue. Before proceeding, we need to wait for the registration of the ROOT_jll update of Yggdrasil PR #12894.

[noblock]