Re-sign 11.0.6 and 11.5a4 windows builds

Some users reported on the blog that 11.0.6 windows bundles are signed with the old cert: https://forum.torproject.net/t/file-signature-could-not-be-verified-11-0-6-en-us-exe-32-bit/2181

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information