Update min Go version for tutorial

[DanRoscigno]

With Go < 1.22 I get this error when running the tutorial:

../../go/pkg/mod/github.com/danielgtaylor/huma/[email protected]/formdata.go:173:21:

undefined: slices.Concat

I think slices.Concat is new in 1.22. With 1.22.4 the tutorial works fine.

I am a tech writer by day, using Go at night to write tests of the docs that I write. I could be completely wrong about the need for 1.22, but here is my reference: https://blog.carlana.net/post/2024/golang-slices-concat/

Summary by CodeRabbit

• Documentation
  • Updated the required version of Go for Huma from 1.20 to 1.22 in the installation tutorial.