Lower FSharp.Core dependency from 6.0.0 to 4.7.2 for better compatibility

[Zaid-Ajaj]

Reopening #19 because the same issue has surfaced. Does Fable.Python need latest FSharp.Core? If not, please consider lowering it to >= 4.7.2

Currently Fable.Python v4.0.0-theta-003 requires FSharp.Core v6.0.6

[dbrattli]

@Zaid-Ajaj Thanks for reopening. I must admit that I have no clue why it requires FSharp.Core v6.0.0 when the dependency is already specified as >= 4.7.2:

https://github.com/fable-compiler/Fable.Python/blob/main/paket.dependencies#L7

I'll try to set lowest_matching: true to see if that helps.

[dbrattli]

@Zaid-Ajaj This looks better right? https://www.nuget.org/packages/Fable.Python/4.0.0-theta-004#dependencies-body-tab

[Zaid-Ajaj]

@dbrattli Much better 😄 thank you!