update: ci/cd update to elixir 1.19/otp 28

Author: acco

.github/workflows/e2e-tests.yml

@@ -16,8 +16,8 @@ jobs:
       - name: Set up Elixir
         uses: erlef/setup-beam@v1
         with:
-          elixir-version: "1.18.x"
-          otp-version: "27.x"
+          elixir-version: "1.19.x"
+          otp-version: "28.x"
 
       - name: Start E2E environment
         run: |

.github/workflows/signoff-commit.yml

@@ -65,8 +65,8 @@ jobs:
       - name: Set up Elixir
         uses: erlef/setup-beam@v1
         with:
-          elixir-version: '1.18.x'
-          otp-version: '27.x'
+          elixir-version: '1.19.x'
+          otp-version: '28.x'
 
       - name: Set up Node.js
         uses: actions/setup-node@v4

Dockerfile

@@ -1,5 +1,5 @@
-ARG ELIXIR_VERSION=1.18.4
-ARG OTP_VERSION=27.3.4.2
+ARG ELIXIR_VERSION=1.19.4
+ARG OTP_VERSION=28.3
 ARG DEBIAN_VERSION=bookworm-20250630-slim
 ARG RELEASE_VERSION
 

mix.exs

@@ -5,7 +5,7 @@ defmodule Sequin.MixProject do
     [
       app: :sequin,
       version: "0.1.0",
-      elixir: "~> 1.18",
+      elixir: "~> 1.19",
       elixirc_paths: elixirc_paths(Mix.env()),
       start_permanent: Mix.env() == :prod,
       aliases: aliases(),