Release 5.0.0-alpha.6

Added

• [All] Add StringBuiler.Append(c: char, repeatCount: int) overload (by @roboz0r)
• [All] Added primitive types equality and comparison (by @ncave)
• [All] Updated FCS to latest F# 9.0 (by @ncave)
• [All] Updated Fable-FCS to latest F# 9.0 (by @ncave)
• [All] Updated metadata to latest .NET 9.0 (by @ncave)
• [All] Updated FCS type constraints (by @ncave)

Fixed

• [Py] Add missing unicode categories in python library (by @joprice)
• [All] Log JSON output if we fail to parse MSBuild result (by @MangelMaxime)