Update to SuiteSparse 4.4.1.
let appveyor know about the version bump

revert this commit and d8cf6feee7bb5db0e86b2183390c4a5b29911f63 once new nightlies are ready
Merge pull request #9357 from JuliaLang/vs/suitesparse

Update to SuiteSparse 4.4.1.