Set to v1.13.1 release version

Author: bouwew

CHANGELOG.md

@@ -1,6 +1,6 @@
 # Changelog
 
-## Ongoing
+## v1.13.1
 
 - Implement dedicated boiler_temperature dict for legacy Anna via PR [#893](https://github.com/plugwise/python-plugwise/pull/893)
 

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name            = "plugwise"
-version         = "1.13.0"
+version         = "1.13.1"
 license         = "MIT"
 description     = "Plugwise Smile (Adam/Anna/P1) and Stretch module for Python 3."
 readme          = "README.md"