Fix up hadolint issues

mqtt/Dockerfile

@@ -1,3 +1,4 @@
+# hadolint ignore=DL3007
 FROM eclipse-mosquitto:latest
 
 COPY mosquitto.conf /mosquitto/config/mosquitto.conf

wordpress/Dockerfile

@@ -4,7 +4,7 @@ LABEL maintainer="Matthew Baggett <matthew@baggett.me>" \
       org.opencontainers.image.source="https://github.com/benzine-framework/docker"
 
 COPY nginx.runit /etc/service/nginx/run
-RUN wget -O /usr/local/bin/wp https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar && \
+RUN wget -q -O /usr/local/bin/wp https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar && \
     chmod +x /etc/service/nginx/run \
              /usr/local/bin/wp \
     && \