Feat/update post gen (#19)

* Update PoSt gen faces


Co-authored-by: zenground0 <ZenGround0@users.noreply.github.com>

Author: ZenGround0

go.mod

@@ -3,8 +3,8 @@ module github.com/filecoin-project/specs-storage
 go 1.13
 
 require (
-	github.com/filecoin-project/go-state-types v0.0.0-20200904021452-1883f36ca2f4
-	github.com/filecoin-project/specs-actors v0.9.4
+	github.com/filecoin-project/go-state-types v0.1.1
+	github.com/filecoin-project/specs-actors/v7 v7.0.0-20211222192039-c83bea50c402
 	github.com/ipfs/go-cid v0.0.7
 	golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550 // indirect
 	golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456 // indirect