Update grunt-autoprefixer to 1.0.1

Upstream changes https://github.com/nDmitry/grunt-autoprefixer/compare/v0.8.2...v1.0.1

see #30141


git-svn-id: https://develop.svn.wordpress.org/trunk@30067 602fd350-edb4-49c9-b593-d223f7449a82