update version to 1.9.1

Author: attwad

CHANGELOG.md

@@ -5,6 +5,10 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 
 ## [Unreleased]
 
+## [1.9.1]
+
+- Reinstate mistakenly deleted package type annotations
+
 ## [1.9.0]
 
 - Added TCP Client and Server support for OSC 1.0 and OSC 1.1 formats, with support for sending responses to the client

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "python-osc"
-version = "1.9.0"
+version = "1.9.1"
 description = "Open Sound Control server and client implementations in pure Python"
 readme = "README.rst"
 requires-python = ">=3.10"