Update version in pyproject.toml from 3.5.8rc2 to 3.5.8

Author: kleinjoshuaa

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "splitapiclient"
-version = "3.5.8rc2"
+version = "3.5.8"
 license = "Apache-2.0"
 description = "This Python Library provides full support for Split REST Admin API, allow creating, deleting and editing Environments, Splits, Split Definitions, Segments, Segment Keys, Users, Groups, API Keys, Change Requests, Attributes and Identities"
 classifiers = [