Downgrade async-bincode to v0.6.1

no `AsyncBincodeReader` in the root

code needs to be adapted

bda/Cargo.toml

@@ -8,7 +8,7 @@ edition = "2018"
 [dependencies]
 anyhow = "1.0.33"
 arrayvec = { version = "0.7", features = ["serde"] }
-async-bincode = "0.7.1"
+async-bincode = "0.6.1"
 async_io_stream = { version = "0.3.1", features = [ "tokio_io"] }
 bincode = "1.3"
 duniter-core = { git = "https://git.duniter.org/nodes/rust/duniter-core" }