fix conda create command

Author: NicolasHug

.github/scripts/setup-env.sh

@@ -29,7 +29,7 @@ conda create \
   python="${PYTHON_VERSION}" pip \
   ninja cmake \
   libpng \
-  libwebp \
+  libwebp
 conda activate ci
 conda install --quiet --yes libjpeg-turbo -c pytorch
 pip install --progress-bar=off --upgrade setuptools==72.1.0