Not compatible with GCCGO 13.0.0

[adonespitogo]

Error when compiling with gccgo:

# github.com/flosch/pongo2/v6
../../go/pkg/mod/github.com/flosch/pongo2/v6@v6.0.0/template_loader.go:8:7: error: import file ‘io/fs’ not found
    8 |  "io/fs"
      |       ^
../../go/pkg/mod/github.com/flosch/pongo2/v6@v6.0.0/template_loader.go:18:7: error: expected package
   18 |  fs fs.FS
      |       ^
../../go/pkg/mod/github.com/flosch/pongo2/v6@v6.0.0/template_loader.go:21:23: error: expected package
   21 | func NewFSLoader(fs fs.FS) *FSLoader {
      |                       ^
../../go/pkg/mod/github.com/flosch/pongo2/v6@v6.0.0/context.go:28:25: error: use of undefined type ‘any’
   28 | type Context map[string]any

[Elara6331]

That seems to be because gccgo is based on an older version of Go that this project isn't compatible with