Fix CI for PRs to fetch full history for prov-from-git

Author: dalito

.github/workflows/ci-pr.yml

@@ -46,6 +46,8 @@ jobs:
           repository: ${{ github.event.pull_request.head.repo.full_name }}
           # Checkout the branch made in the fork.
           ref: ${{ github.head_ref }}
+          # The full history is required for "voc4cat transform --prov-from-git" below.
+          fetch-depth: 0
           # Be specific about keeping credentials (it is the default)
           persist-credentials: true