run mix format

.drone.yml

@@ -17,7 +17,7 @@ steps:
       - .mix
 
 - name: test
-  image: elixir:1.14.4-alpine
+  image: elixir:1.15.5-alpine
   environment:
     TEST_DATABASE_URL: ecto://postgres:postgres@database/memex_test
     HOST: testing.example.tld

Dockerfile

@@ -1,4 +1,4 @@
-FROM elixir:1.14.4-alpine AS build
+FROM elixir:1.15.5-alpine AS build
 
 # install build dependencies
 RUN apk add --no-cache build-base npm git python3