Checkout source code during deploy

We need the checked out repository in order to push the tag.

Author: nicoddemus

.github/workflows/deploy.yml

@@ -37,6 +37,7 @@ jobs:
     permissions:
       id-token: write
     steps:
+    - uses: actions/checkout@v3
     - name: Download Package
       uses: actions/download-artifact@v3
       with: