testing/pixi: upgrade to 0.21.0

testing/pixi/APKBUILD

 # Contributor: Orhun Parmaksız <orhunparmaksiz@gmail.com>
 # Maintainer: Orhun Parmaksız <orhunparmaksiz@gmail.com>
 pkgname=pixi
-pkgver=0.20.1
+pkgver=0.21.0
 pkgrel=0
 pkgdesc="A package management and workflow tool"
 url="https://github.com/prefix-dev/pixi"
@@ -49,5 +49,5 @@ package() {
 }
 
 sha512sums="
-4dc393e0086fb0bf8f8b086877368eca5bba8a17d154f97a9f2bc8077c51552b622c35b9dbd9bb721d849ad034ec12774a7cd13aa25e583bf67b3553b850ab0a  pixi-0.20.1.tar.gz
+c0ca407adba7eccea8d0ec6b5fb58f52b1b0be2db72234afcccf93f3c429a83ea194287e81659e0926e6ab8160e1ef3d3378410078cff4d9dee3b809f08349a1  pixi-0.21.0.tar.gz
 "