Fix build script execution

Author: abloemert

.github/workflows/deploy.yml

@@ -31,7 +31,7 @@ jobs:
       - name: Setup Pages
         uses: actions/configure-pages@v5
       - name: Build
-        run: build.sh
+        run: ./build.sh
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3
         with: