Sort Python package descriptors by version to mimic PyPI format (#23550)

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Hi, very naive and **untested** first time ever Go code, feel free to
reject/edit this as needed.
(PyPI actually performs "naive" string comparison too)

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Co-authored-by: Lauris BH <lauris@nix.lv>

routers/api/packages/pypi/pypi.go

@@ -8,6 +8,7 @@ import (
  "io"
  "net/http"
  "regexp"
+ "sort"
  "strings"
 
  packages_model "code.gitea.io/gitea/models/packages"
@@ -62,6 +63,11 @@ func PackageMetadata(ctx *context.Context) {
  return
  }
 
+ // sort package descriptors by version to mimic PyPI format
+ sort.Slice(pds, func(i, j int) bool {
+ return strings.Compare(pds[i].Version.Version, pds[j].Version.Version) < 0
+ })
+
  ctx.Data["RegistryURL"] = setting.AppURL + "api/packages/" + ctx.Package.Owner.Name + "/pypi"
  ctx.Data["PackageDescriptor"] = pds[0]
  ctx.Data["PackageDescriptors"] = pds