Get elixir dependencies BEFORE npm install

This is absolutely essential because phoenix node module is a symlink

priv/build/build.sh

@@ -7,14 +7,16 @@ MIX_ENV=${MIX_ENV-prod}
 
 export MIX_ENV=$MIX_ENV
 
+# Clean project and get dependencies
+mix do local.hex --force, \
+       clean --only $MIX_ENV, \
+       deps.get --only $MIX_ENV
+
 # Build static assets
 npm --prefix ./assets ci --progress=false --no-audit --loglevel=error
 npm run --prefix ./assets deploy
 
-# Run an explicit clean beforehand
-mix do local.hex --force, \
-       clean --only $MIX_ENV, \
-       deps.get --only $MIX_ENV, \
-       compile --force, \
+# Run project compilation
+mix do compile --force, \
        release --overwrite, \
        phx.digest