Bump the version to 0.3.0.dev0 (#856)

Bump the development version to `0.3.0.dev0`, since the `main` 
branch now works towards the next minor release.

Author: greschd

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "ansys-acp-core"
-version = "0.1.dev0"
+version = "0.3.0.dev0"
 
 description = "Python library for ACP - Ansys Composite PrepPost"
 readme = "README.rst"