main/py-django: security upgrade to 1.11.20 (CVE-2019-6975)

fixes #10004

main/py-django/APKBUILD

@@ -2,7 +2,7 @@
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=py-django
 _pkgname=Django
-pkgver=1.11.18
+pkgver=1.11.20
 pkgrel=0
 pkgdesc="A high-level Python Web framework"
 url="http://djangoproject.com/"
@@ -33,7 +33,8 @@ builddir="$srcdir"/$_pkgname-$pkgver
 #     - CVE-2018-14574
 #   1.11.18-r0:
 #     - CVE-2019-3498
-
+#   1.11.19-r0:
+#     - CVE-2019-6975
 
 build() {
 	cd "$builddir"
@@ -83,4 +84,4 @@ _py() {
 	done
 }
 
-sha512sums="35c885e835c5e85257774c65c11bf851e710c745df3366487159f21f90e092236dd8d2cee86e8165945e57fc710989b0ea2747682fa4ce37d5e93d4f664b76c1  Django-1.11.18.tar.gz"
+sha512sums="5a0fff6c9b90a08e98dee6d4d090047adb900a8f6a061f98e685e8998bfe3d97fe7a90aa7d4d2feae67026fb6e4441393d50cb5ab295604ed362a080b987f062  Django-1.11.20.tar.gz"