Fix organization field being null in POST /orgs/{orgid}/teams (#27150) (#27163)

Backport #27150 by @memphis88

Similarly to the fix in https://github.com/go-gitea/gitea/pull/24694,
this addresses the team creation not returning the organization
information in the response.

This fix is connected to the
[issue](https://gitea.com/gitea/terraform-provider-gitea/issues/27)
discovered in the terraform provider.
Moreover, the
[documentation](https://docs.gitea.com/api/1.20/#tag/organization/operation/orgCreateTeam)
suggests that the response body should include the `organization` field
(currently being `null`).

Co-authored-by: Dionysios Kakouris <1369451+memphis88@users.noreply.github.com>

routers/api/v1/org/team.go

@@ -248,7 +248,7 @@ func CreateTeam(ctx *context.APIContext) {
 		return
 	}
 
-	apiTeam, err := convert.ToTeam(ctx, team)
+	apiTeam, err := convert.ToTeam(ctx, team, true)
 	if err != nil {
 		ctx.InternalServerError(err)
 		return