rsa dependency: switch to crates.io

Consume the rsa dependency from crates.io instead of its git repository.

Signed-off-by: Flavio Castelli <[email protected]>

Author: flavio

Cargo.toml

@@ -48,7 +48,7 @@ digest = "0.10.3"
 signature = { version = "1.5.0", features = [ "digest-preview" ] }
 ed25519 = { version = "1", features = [ "alloc" ] }
 ed25519-dalek-fiat = "0.1.0"
-rsa = { git = "https://github.com/RustCrypto/RSA", rev = "c880e5f" }
+rsa =  "0.7.0-rc.1"
 pkcs1 = "0.4.0"
 
 [dev-dependencies]