ci: enable pypi trusted publishing

Author: xi

.github/workflows/main.yml

@@ -34,6 +34,8 @@ jobs:
     needs: [lint, test]
     if: startsWith(github.ref, 'refs/tags')
     runs-on: ubuntu-latest
+    permissions:
+      id-token: write
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-python@v5
@@ -42,5 +44,3 @@ jobs:
       run: python3 -m build
     - name: publish
       uses: pypa/gh-action-pypi-publish@release/v1
-      with:
-        password: ${{ secrets.PYPI_API_TOKEN }}