update cargo versions (argumentcomputer#239)

Cargo.toml

@@ -12,8 +12,8 @@ keywords = ["zkSNARKs", "cryptography", "proofs"]
 rust-version="1.67.1"
 
 [dependencies]
-bellpepper-core = { version="0.2.0", default-features = false }
-bellpepper = { version="0.2.0", default-features = false }
+bellpepper-core = { version="0.3.0", default-features = false }
+bellpepper = { version="0.3.0", default-features = false }
 ff = { version = "0.13.0", features = ["derive"] }
 digest = "0.10"
 sha3 = "0.10"
@@ -22,7 +22,7 @@ rand_core = { version = "0.6", default-features = false }
 rand_chacha = "0.3"
 subtle = "2.5"
 pasta_curves = { version = "0.5", features = ["repr-c", "serde"] }
-neptune = { version = "11.0.0", default-features = false }
+neptune = { version = "11.1.0", default-features = false }
 generic-array = "0.14"
 num-bigint = { version = "0.4", features = ["serde", "rand"] }
 num-traits = "0.2"