Undo to previous version for pyproject.toml for release to pypi

Author: gourav3017

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "portpy"
-version = { file = "portpy/__init__.py" }
+dynamic = ["version"]
 description = "First open-source radiation treatment planning system in Python"
 readme = "README.md"
 license = "Apache-2.0"
@@ -50,6 +50,9 @@ dependencies = [
 where = ["."]
 include = ["portpy.*"]
 
+[tool.setuptools.dynamic]
+version = { attr = "portpy.__version__" }
+
 [tool.setuptools.package-data]
 "*" = ["*.md"]