fix(api/dockerfile): give /projects correct permissions

api/Dockerfile

@@ -5,10 +5,13 @@ WORKDIR /app
 RUN wget -q https://raw.githubusercontent.com/vishnubob/wait-for-it/master/wait-for-it.sh -P /usr/local/bin \
     && chmod +x /usr/local/bin/wait-for-it.sh \
     && mkdir -p /app \
+    && mkdir /projects \
     && useradd -u 901 -r outdated --create-home \
     # all project specific folders need to be accessible by newly created user but also for unknown users (when UID is set manually). Such users are in group root.
     && chown -R outdated:root /home/outdated \
+    && chown -R outdated:root /projects \
     && chmod -R 770 /home/outdated \
+    && chmod -R 770 /projects \
     && apt-get update && apt-get install -y --no-install-recommends \
     # needed for psycopg2
     libpq-dev \