isl: Update to 0.22

switch back to http because https is broken and just redirects

mingw-w64-isl/PKGBUILD

@@ -3,7 +3,7 @@
 _realname=isl
 pkgbase=mingw-w64-${_realname}
 pkgname=("${MINGW_PACKAGE_PREFIX}-${_realname}")
-pkgver=0.21
+pkgver=0.22
 pkgrel=1
 pkgdesc="Library for manipulating sets and relations of integer points bounded by linear constraints (mingw-w64)"
 arch=('any')
@@ -12,9 +12,9 @@ url="https://isl.gforge.inria.fr/"
 makedepends=("${MINGW_PACKAGE_PREFIX}-gmp")
 options=('staticlibs')
 license=('MIT')
-source=("https://isl.gforge.inria.fr/${_realname}-${pkgver}.tar.xz"
+source=("http://isl.gforge.inria.fr/${_realname}-${pkgver}.tar.xz"
         isl-0.14.1-no-undefined.patch)
-sha256sums=('777058852a3db9500954361e294881214f6ecd4b594c00da5eee974cd6a54960'
+sha256sums=('6c8bc56c477affecba9c59e2c9f026967ac8bad01b51bdd07916db40a517b9fa'
             '83655a7202f0a0dcce1782d4b365252bf1ad12a522b7ad82ab578ee5ec46433b')
 
 prepare() {