feat: add Giscus configuration variables to GitHub Actions workflow

Author: danieldanielecki

.github/workflows/pages.yml

@@ -39,6 +39,10 @@ jobs:
           EXPORT: 1
           UNOPTIMIZED: 1
           BASE_PATH: ${{ steps.configurepages.outputs.base_path }}
+          NEXT_PUBLIC_GISCUS_REPO: ${{ vars.NEXT_PUBLIC_GISCUS_REPO }}
+          NEXT_PUBLIC_GISCUS_REPOSITORY_ID: ${{ vars.NEXT_PUBLIC_GISCUS_REPOSITORY_ID }}
+          NEXT_PUBLIC_GISCUS_CATEGORY: ${{ vars.NEXT_PUBLIC_GISCUS_CATEGORY }}
+          NEXT_PUBLIC_GISCUS_CATEGORY_ID: ${{ vars.NEXT_PUBLIC_GISCUS_CATEGORY_ID }}
       - uses: actions/upload-pages-artifact@v3
         with:
           path: ./out