Update Hugo to version 0.58.0

Dockerfile

@@ -9,9 +9,9 @@
 # to work around segmentation fault issues.
 FROM golang:1.12-alpine
 ARG HUGO=hugo
-ARG HUGO_VERSION=0.57.2
-ARG HUGO_SHA=558cd6d492562cf7bc2a24a683cdc2608043a4f593077442480944cc7c1f8665
-ARG HUGO_EXTENDED_SHA=f4ce91d6909d489fe5461633f6b6bd689ed14c9e06b1b7af110024420aa8fd91
+ARG HUGO_VERSION=0.58.0
+ARG HUGO_SHA=073f692b7523d5bdf415273d4b8b26f5c230b57c36fe719368e7027368b9c5b7
+ARG HUGO_EXTENDED_SHA=0db2ffec032f52deada3415317d965b4acd11000c19a10248c107ee1e1fb671d
 RUN set -eux && \
     case ${HUGO} in \
       *_extended) \