Add latest Erlang version to CI

To ensure CI runs the latest released Erlang version, add "latest" to
the matrix.

[skip changeset]

.github/workflows/ci.yaml

@@ -21,7 +21,7 @@ jobs:
       - name: Set up Erlang and Elixir
         uses: erlef/setup-beam@v1
         with:
-          otp-version: 27.x
+          otp-version: latest
           elixir-version: latest
       - name: Checkout code
         uses: actions/checkout@v4
@@ -34,7 +34,7 @@ jobs:
       - name: Set up Erlang and Elixir
         uses: erlef/setup-beam@v1
         with:
-          otp-version: 27.x
+          otp-version: latest
           elixir-version: latest
       - name: Checkout code
         uses: actions/checkout@v4
@@ -49,7 +49,7 @@ jobs:
       - name: Set up Erlang and Elixir
         uses: erlef/setup-beam@v1
         with:
-          otp-version: 27.x
+          otp-version: latest
           elixir-version: latest
       - name: Checkout code
         uses: actions/checkout@v4
@@ -64,7 +64,7 @@ jobs:
       - name: Set up Erlang and Elixir
         uses: erlef/setup-beam@v1
         with:
-          otp-version: 27.x
+          otp-version: latest
           elixir-version: latest
       - name: PLT cache
         uses: actions/cache@v4
@@ -87,7 +87,7 @@ jobs:
       - name: Set up Erlang and Elixir
         uses: erlef/setup-beam@v1
         with:
-          otp-version: 27.x
+          otp-version: latest
           elixir-version: latest
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
@@ -109,7 +109,7 @@ jobs:
       - name: Set up Erlang and Elixir
         uses: erlef/setup-beam@v1
         with:
-          otp-version: 27.x
+          otp-version: latest
           elixir-version: latest
       - name: Checkout code
         uses: actions/checkout@v4
@@ -130,7 +130,7 @@ jobs:
           - 25.x
         include:
           - elixir: latest
-            otp: 27.x
+            otp: latest
           - elixir: 1.16.x
             otp: 26.x
           - elixir: 1.15.x