CompatHelper: bump compat for QuantumSymbolics to 0.4, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the QuantumSymbolics package from 0.3 to 0.3, 0.4.
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.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 72.94%. Comparing base (47528b2) to head (32b32aa).
Report is 1 commits behind head on master.

Files	Patch %	Lines
ext/QuantumSavoryMakie/QuantumSavoryMakie.jl	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #144      +/-   ##
==========================================
+ Coverage   69.26%   72.94%   +3.68%     
==========================================
  Files          39       39              
  Lines        1692     1693       +1     
==========================================
+ Hits         1172     1235      +63     
+ Misses        520      458      -62     

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[Krastanov]

@apkille
Andrew, it seems the new @withmetadata is causing some issues for the objects defined in QuantumSavory. Could you check what the source of the issue is? Something is complaining about namify being called.

[apkille]

Yes, I'll take a look.

[apkille]

@Krastanov It's because descriptive strings are included above each field of your struct definitions, e.g.,

QuantumSavory.jl/src/StatesZoo/zalm_pair/zalm_pair.jl

Line 589 in 29d78f8

"mean photon number per mode of the cascaded source model"

. So the MacroTools @capture command captures a string as a field. Here's two different ways we could fix this: we could use MacroTools.isexpr(expr, String, :string) to filter out these strings when we are decorating the struct definition, or change these descriptive strings into single-line comments next to the fields.

[apkille]

The first option would look something like this:

macro filter(strct)
        ex = quote $strct end
        if @capture(ex, struct T_ fields__ end)
            struct_name = namify(T)
            args = (namify(i) for i in fields if !isexpr(i, String, :string))
        end
        print(args...)
end

Here, @filter just filters out everything except the actual field names:

julia> @filter struct foo
           "hi"
           a::Int
           end
a

[apkille]

@Krastanov submitted a PR to QSymbolics.jl that implements the first option. If you don't agree with those changes, that's OK!