Fix deployment pipeline

Author: Kagemaru

Dockerfile

@@ -17,6 +17,14 @@ RUN mix local.hex --force && \
 COPY mix.* /usr/src/app/
 # Guardian requires the config files to compile..
 COPY config/* /usr/src/app/config/
+
+USER root
+
+RUN find /usr/src/app -type d -exec chmod 777 {} \; && \
+    find /usr/src/app -type f -exec chmod 666 {} \;
+
+USER 1001
+
 RUN mix deps.get --only prod && \
     mix deps.compile --only prod