fix: update vulnerable libxml2 to 2.13.9-r0 (#5591)

Author: robert-hebel-sb

Dockerfile

@@ -8,7 +8,7 @@ LABEL maintainer="[email protected]" \
       org.opencontainers.image.licenses="Apache-2.0"
 
 
-RUN apk add --update-cache --no-cache "libxml2>=2.13.4-r6"
+RUN apk add --update-cache --no-cache "libxml2>=2.13.9-r0"
 
 COPY ./build /usr/share/nginx/html