Fix typo (#527)

Signed-off-by: hp <hp_ctt@hotmail.com>

Co-authored-by: CJ Hare <CjHare@users.noreply.github.com>

ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/graphql/internal/response/GraphQLError.java

@@ -39,7 +39,7 @@ public enum GraphQLError {
   REPLAY_PROTECTED_SIGNATURES_NOT_SUPPORTED(
       -32000, "Signatures with replay protection are not supported"),
 
-  // Provate Transaction Errors
+  // Private Transaction Errors
   PRIVATE_TRANSACTION_FAILED(-32000, "Private transaction failed"),
   PRIVATE_NONCE_TOO_LOW(-50100, "Private transaction nonce too low"),
   INCORRECT_PRIVATE_NONCE(-50100, "Private transaction nonce is incorrect");