Investigate dynamic field parsing in pyproject.toml

Co-authored-by: a-schur <227858738+a-schur@users.noreply.github.com>

Author: Copilot

python/spec/fixtures/pyproject_files/dynamic_nested_dotted.toml

@@ -0,0 +1,6 @@
+[tool.setuptools]
+dynamic.version = {attr = "test.__init__.__version__"}
+
+[project]
+name = "test"
+dynamic = ["version"]

python/spec/fixtures/pyproject_files/dynamic_nested_dotted_with_deps.toml

@@ -0,0 +1,13 @@
+[build-system]
+requires = ["setuptools>=42", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools]
+dynamic.version = {attr = "test.__init__.__version__"}
+
+[project]
+name = "test"
+dynamic = ["version"]
+dependencies = [
+   "requests==2.31.0",
+]