Bump version to 1.2.12 to fix CVE-2018-25032

Upstream related https://github.com/madler/zlib/issues/605,
5c44459c3b

-resolves: rhbz#2068371

Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>

.gitignore

@@ -3,3 +3,4 @@ zlib-1.2.3.tar.gz
 /zlib-1.2.7.tar.gz
 /zlib-1.2.8.tar.gz
 /zlib-1.2.11.tar.xz
+/zlib-1.2.12.tar.xz

mingw-zlib.spec

@@ -1,8 +1,8 @@
 %{?mingw_package_header}
 
 Name:           mingw-zlib
-Version:        1.2.11
-Release:        7%{?dist}
+Version:        1.2.12
+Release:        1%{?dist}
 Summary:        MinGW Windows zlib compression library
 
 License:        zlib

sources

@@ -1 +1 @@
-SHA512 (zlib-1.2.11.tar.xz) = b7f50ada138c7f93eb7eb1631efccd1d9f03a5e77b6c13c8b757017b2d462e19d2d3e01c50fad60a4ae1bc86d431f6f94c72c11ff410c25121e571953017cb67
+SHA512 (zlib-1.2.12.tar.xz) = 12940e81e988f7661da52fa20bdc333314ae86a621fdb748804a20840b065a1d6d984430f2d41f3a057de0effc6ff9bcf42f9ee9510b88219085f59cbbd082bd