Update Hugo

Dockerfile

@@ -7,7 +7,7 @@ RUN apt-get -qq update \
 	&& DEBIAN_FRONTEND=noninteractive apt-get -qq install -y --no-install-recommends python-pygments git ca-certificates asciidoc \
 	&& rm -rf /var/lib/apt/lists/*
 
-ENV HUGO_VERSION 0.22.1
+ENV HUGO_VERSION 0.26
 ENV HUGO_BINARY hugo_${HUGO_VERSION}_Linux-64bit.deb
 
 ADD https://github.com/spf13/hugo/releases/download/v${HUGO_VERSION}/${HUGO_BINARY} /tmp/hugo.deb