ci: enable PyPI trusted publishing and add build dependency (#24)

Uncomments the pypa/gh-action-pypi-publish step now that OIDC trusted
publishing can be configured on PyPI. Adds the build package as a PyPI
dependency so `pixi run python -m build` works.

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: Chris1221

.github/workflows/python-publish.yml

@@ -31,6 +31,5 @@ jobs:
     - name: Build package
       run: pixi run python -m build
 
-    # Pypi key needed, not yet set up
-    # - name: Publish package to PyPI
-    #   uses: pypa/gh-action-pypi-publish@release/v1
+    - name: Publish package to PyPI
+      uses: pypa/gh-action-pypi-publish@release/v1

pixi.lock

@@ -30,6 +30,7 @@ platforms = ["linux-64", "osx-64", "osx-arm64"]
 
 [tool.pixi.pypi-dependencies]
 yamldoc = { path = ".", editable = true }
+build = "*"
 
 [tool.pixi.dependencies]
 python = ">=3.8"