Switch to ghcr.io/wg-easy/wg-easy image (#22)

* Switch to ghcr.io/wg-easy/wg-easy image

* Fix with Dockerfile build

* Fix hadolint checks

Dockerfile

@@ -1,12 +1,10 @@
-FROM weejewel/wg-easy:7
+FROM ghcr.io/wg-easy/wg-easy:9
 
 # hadolint ignore=DL3022,DL3023
 COPY --from=mindflavor/prometheus-wireguard-exporter:3.6.6 /usr/local/bin/prometheus_wireguard_exporter /usr/local/bin/
 
-# shellcheck disable=SC2016
-RUN apk add -U --no-cache \
-  wireguard-tools=1.0.20200102-r0 \
-  && sed \
+# hadolint ignore=SC2016
+RUN sed \
   -i '1,/^\[Peer\]/{s//[Peer]\n# friendly_name = ${client.name}\n# (${clientId})/}' \
   lib/WireGuard.js