Upgrade sp-core, sp-runtime and sp-keyring (#1777)

* Upgrade sp-core to v34

* Update Cargo.toml

Co-authored-by: James Wilson <james@jsdw.me>

* Fix clippy

---------

Co-authored-by: Niklas Adolfsson <niklasadolfsson1@gmail.com>
Co-authored-by: James Wilson <james@jsdw.me>

signer/src/ecdsa.rs

@@ -430,10 +430,10 @@ mod test {
 
             let message = b"Hello world";
             let sp_sig = sp_pair.sign(message).0;
-            let sig = pair.sign(message).0;
+            let sig: [u8; 65] = pair.sign(message).0;
 
             assert!(SpPair::verify(
-                &SpSignature(sig),
+                &SpSignature::from(sig),
                 message,
                 &sp_pair.public(),
             ));

signer/src/sr25519.rs

@@ -429,7 +429,7 @@ mod test {
             let sig = pair.sign(message).0;
 
             assert!(SpPair::verify(
-                &SpSignature(sig),
+                &SpSignature::from(sig),
                 message,
                 &sp_pair.public()
             ));