testing/py3-puremagic: upgrade to 1.28

testing/py3-puremagic/APKBUILD

 # Maintainer: Patrycja Rosa <alpine@ptrcnull.me>
 pkgname=py3-puremagic
-pkgver=1.27
+pkgver=1.28
 pkgrel=0
 pkgdesc="Pure python implementation of identifying files based off their magic numbers"
 url="https://github.com/cdgriffith/puremagic"
@@ -30,5 +30,5 @@ package() {
 }
 
 sha512sums="
-56365dc122160d306704290a054afa7be5007ca3634275fab168e1ea8bc29356477c5455abba3d84c9e229dc9ce3a21df58ed7e6ff216fe0c60d7257e4b02584  puremagic-1.27.tar.gz
+8a9d04b34d32a552fa51de1c720556d46c2aef99913d9c339838a682e8758ba16c66bcd4d205fe59dd6ae7cd27c311b24638a4084baf7a27869e5304e4994d27  puremagic-1.28.tar.gz
 "