define crate import for kuska

Cargo.lock

@@ -591,8 +591,9 @@ dependencies = [
 
 [[package]]
 name = "kuska-ssb"
-version = "0.2.0"
-source = "git+https://github.com/Kuska-ssb/ssb#47165ddc60c60031fb3eea07cb7d43ec6920dd0c"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cef1d6e08b984bc040c5c11ee3104e626640466978b6977a2d842e4a72595311"
 dependencies = [
  "async-std",
  "async-stream 0.2.1",

Cargo.toml

@@ -19,6 +19,6 @@ futures = "0.3.21"
 hex = "0.4.3"
 kuska-handshake = { version = "0.2.0", features = ["async_std"] }
 kuska-sodiumoxide = "0.2.5-0"
-kuska-ssb = { git = "https://github.com/Kuska-ssb/ssb" }
+kuska-ssb = "0.4.0"
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"