Enable deploying to PyPI (#19)

Deploying dbt-score to PyPI via github actions when the project is
tagged.

- https://pypi.org/project/dbt-score/#history

.github/workflows/release.yml

@@ -10,6 +10,7 @@ jobs:
     name: release
     runs-on: ubuntu-latest
     permissions:
+      id-token: write
       contents: write
 
     steps:
@@ -18,6 +19,9 @@ jobs:
         uses: pdm-project/setup-pdm@v4
         with:
           python-version: "3.10"
+      - name: Publish package distributions to PyPI
+        run: |
+          pdm publish
       - name: Install dependencies
         run: |
           pdm sync -G docs