fix(ci): use un-privileged user

mpsq · mpsq · commit 3320e3ee59d6 · 2020-12-02T09:47:59.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -1,5 +1,7 @@
 FROM mpsq/emacs-native-comp-wayland-builder:latest
 
+USER pcr
+
 RUN trizen \
   --quiet \
   --nocolors \
