community/py3-virtualenv: security upgrade to 20.28.0

Signed-off-by: Ilya Kheifets <ikheifets@splunk.com>

community/py3-virtualenv/APKBUILD

@@ -2,7 +2,7 @@
 # Contributor: TBK <alpine@jjtc.eu>
 # Maintainer: Patrycja Rosa <alpine@ptrcnull.me>
 pkgname=py3-virtualenv
-pkgver=20.26.2
+pkgver=20.28.0
 pkgrel=0
 pkgdesc="Virtual Python3 Environment builder"
 url="https://virtualenv.pypa.io/en/latest/"
@@ -51,5 +51,5 @@ package() {
 }
 
 sha512sums="
-49b78bb2b339a41637faa887728f195b042133506092e0793adf049b5b1523fab89222809449323a1eb771fa40d2f55df6dd97c16d765d7a78dc9299185fb864  virtualenv-20.26.2.tar.gz
+6a66663af74a240b9ad1cd3170f765ea44aea5f013d63c996a66af4aa0ad4e56c2c38c4f51d43181ac55c6099363694478d7ef15b640c56f8f801d3cd318966e  virtualenv-20.28.0.tar.gz
 "