Update CHANGELOG and pyproject (#548)

Author: JST5000

CHANGELOG.md

@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [[Unreleased]]
+
+## [1.8.0] - 2023-04-10
 ### Added:
 - Created function alias to `safe_sign_transaction` called `sign` - safe originally used to indicate local offline signing (keys aren't exposed)
 - Created function alias to `safe_sign_and_autofill_transaction` called `autofill_and_sign` to reflect order of operations

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "xrpl-py"
-version = "1.7.0"
+version = "1.8.0"
 description = "A complete Python library for interacting with the XRP ledger"
 readme = "README.md"
 repository = "https://github.com/XRPLF/xrpl-py"