try to include libwebp

Dockerfile.debian-bookworm-hugo

@@ -4,6 +4,6 @@ ENV DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get -qq update && \
     apt-get -qq dist-upgrade && \
-    apt-get -qq install hugo && \
+    apt-get -qq install hugo libwebp7 libwebp-dev && \
     apt-get -qq clean
 RUN ldconfig
\ No newline at end of file