Static type arguments support both `'` and `^` starting F# 7

[vzarytovskii]

Starting F#7, static type argument can use both ' and ^,
https://github.com/Nsidorenco/tree-sitter-fsharp/blob/a6fb052fd4c2344e02fbd5dde84d9283a93a0104/grammar.js#L1049-L1052

Was implemented in dotnet/fsharp#13119, more info here: https://devblogs.microsoft.com/dotnet/announcing-fsharp-7/#making-working-with-srtps-easier

Should be an easy fix.