ci: 👷 use GH_TOKEN to use gh cli (#90)

# Description

`gh` needs this env variable.

No review needed.

Author: lwjohnst86

.github/workflows/build-website.yml

@@ -8,6 +8,10 @@ on:
 # Limit token permissions for security
 permissions: read-all
 
+# This is to allow using `gh` CLI
+env:
+  GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
 jobs:
   build-website:
     uses: seedcase-project/.github/.github/workflows/reusable-build-docs-with-python.yml@main