chore: update validator action (#88)

Author: RostiMelk

.github/workflows/validate.yml

@@ -7,6 +7,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Validate Sanity Template
-        uses: sanity-io/[email protected].0
+        uses: sanity-io/[email protected].5
         with:
           repository: ${{ github.repository }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}