ci: fix release script (#4984)

Our first [GHA GitHub release
failed](https://github.com/dequelabs/axe-core/actions/runs/20758308118/job/59607316910).
Looks like the script expects the env which wasn't set.

Author: straker

.github/workflows/deploy.yml

@@ -173,6 +173,8 @@ jobs:
       - name: Make Release Script Executable
         run: chmod +x ./node-github-release.sh
       - name: Create GitHub Release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: ./node-github-release.sh
   validate-deploy:
     name: Validate Deployment