bump elixir/erlang version in ci

.forgejo/workflows/production.yaml

@@ -42,14 +42,14 @@ jobs:
         uses: https://github.com/erlef/setup-beam@v1
         with:
           version-type: strict
-          elixir-version: '1.18.1'
-          otp-version: '27.2'
+          elixir-version: "1.19.5"
+          otp-version: "28.5"
 
       - name: Cache Mix
         uses: https://github.com/actions/cache@v4
         with:
           path: ~/.mix
-          key: ${{ runner.os }}-mix-1.18.1-27.2
+          key: ${{ runner.os }}-mix-1.19.5-28.5
           restore-keys: ${{ runner.os }}-mix-
 
       - name: Cache deps