Update dependencies and bump version to 0.4.6 (#115)

* Update dependencies

* Bump version to 0.4.6

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "multi-party-ecdsa"
-version = "0.4.5"
+version = "0.4.6"
 edition = "2018"
 authors = [
     "Gary <[email protected]>",
@@ -34,30 +34,26 @@ subtle = { version = "2" }
 serde = { version = "1.0", features = ["derive"] }
 zeroize = "1"
 libsecp256k1 = "0.3.2"
-
-[dependencies.curv]
-git = "https://github.com/KZen-networks/curv"
-tag = "v0.6.2"
-default-features = false
+curv = { package = "curv-kzen", version = "0.7", default-features = false }
 
 [dependencies.centipede]
 git = "https://github.com/KZen-networks/centipede"
-tag = "v0.2.11"
+tag = "v0.2.12"
 default-features = false
 
 [dependencies.paillier]
 git = "https://github.com/KZen-networks/rust-paillier"
-tag = "v0.3.9"
+tag = "v0.3.10"
 default-features = false
 
 [dependencies.zk-paillier]
 git = "https://github.com/KZen-networks/zk-paillier"
-tag = "v0.3.11"
+tag = "v0.3.12"
 default-features = false
 
 [dependencies.class_group]
 git = "https://github.com/KZen-networks/class"
-tag = "v0.5.1"
+tag = "v0.5.2"
 optional = true
 
 [dev-dependencies]