Increment version number to 0.5.0

Author: github-actions[bot]

pyproject.toml

@@ -7,7 +7,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "office-templates"
-version = "0.4.2"
+version = "0.5.0"
 description = "Generates Office documents (PPTX/XLSX) from template files that are flexibly populated or composed using provided context."
 readme = "README.md"
 requires-python = ">=3.12"