Update CI

Author: andreasknoepfle

.github/workflows/ci.yml

@@ -14,8 +14,8 @@ jobs:
       - name: Install OTP and Elixir
         uses: erlef/setup-beam@v1
         with:
-          otp-version: "25.0"
-          elixir-version: "1.14.2"
+          otp-version: "28.0"
+          elixir-version: "1.18.4"
 
       - name: Install dependencies
         run: mix deps.get
@@ -35,8 +35,8 @@ jobs:
       - name: Install OTP and Elixir
         uses: erlef/setup-beam@v1
         with:
-          otp-version: "25.0"
-          elixir-version: "1.14.2"
+          otp-version: "28.0"
+          elixir-version: "1.18.4"
 
       - name: Install dependencies
         run: mix deps.get
@@ -51,18 +51,18 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - erlang: "26.0"
+            elixir: "1.18.4"
+            os: "ubuntu-24.04"
+          - erlang: "26.1"
+            elixir: "1.15.7"
+            os: "ubuntu-24.04"
           - erlang: "24.2"
             elixir: "1.12.3"
             os: "ubuntu-22.04"
           - erlang: "24.2"
             elixir: "1.13.4"
             os: "ubuntu-22.04"
-          - erlang: "23.0"
-            elixir: "1.11.2"
-            os: "ubuntu-20.04"
-          - erlang: "23.0"
-            elixir: "1.10.3"
-            os: "ubuntu-20.04"
 
     steps:
       - uses: actions/checkout@v1