Stop uploading built site as archive, since it's not usable as such

Author: ethanjli

.github/workflows/build-docker.yml

@@ -133,10 +133,3 @@ jobs:
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           push: ${{ env.PUSH_IMAGE }}
-
-      # Upload documentation website as archive
-      - name: Upload website archive
-        uses: actions/upload-artifact@v4
-        with:
-          name: documentation-website${{ env.VARIANT_SUFFIX }}
-          path: build