use elixir 1.13.4

.tool-versions

@@ -1,3 +1,3 @@
-elixir 1.13.2-otp-24
+elixir 1.13.4-otp-24
 erlang 24.2
 nodejs 16.13.2

Dockerfile

@@ -1,4 +1,4 @@
-FROM elixir:1.13-alpine AS build
+FROM elixir:1.13.4-alpine AS build
 
 # install build dependencies
 RUN apk add --no-cache build-base npm git python3

mix.exs

@@ -5,7 +5,7 @@ defmodule Cannery.MixProject do
     [
       app: :cannery,
       version: "0.5.0",
-      elixir: "~> 1.12",
+      elixir: "1.13.4",
       elixirc_paths: elixirc_paths(Mix.env()),
       compilers: [:gettext] ++ Mix.compilers(),
       start_permanent: Mix.env() == :prod,