[zlib] use the MinGW pkg-config name with clang on Windows#23060

mmomtchev wants to merge 2 commits intoconan-io:masterconan-io/conan-center-index:masterfrom

mmomtchev:zlib-pkgconfig-name-clang-windowsmmomtchev/conan-center-index:zlib-pkgconfig-name-clang-windowsCopy head branch name to clipboard