don't exclude xref validator

Author: recrwplay

.github/workflows/docs-pr-checks.yml

@@ -16,8 +16,6 @@ jobs:
     uses: neo4j/docs-tools/.github/workflows/reusable-docs-build.yml@v2
     with:
       deploy-id: ${{ github.event.number }}
-      retain-artifacts: 14
-      antora-extensions-exclude: "@neo4j-antora/xref-hash-validator" # Exclude the xref hash validator extension
 
   # Parse the json log output from the HTML build, and output warnings and errors as annotations
   # Optionally, fail the build if there are warnings or errors