ci: fix setup-beam requiring otp-version with elixir

The erlef/setup-beam action requires otp-version when installing Elixir.
Also updated Elixir version to 1.17 for OTP 26/27 compatibility.

Author: GSMLG-BOT

.github/workflows/lint.yml

@@ -48,7 +48,8 @@ jobs:
       - name: Install Elixir (for Mix dependencies)
         uses: erlef/setup-beam@v1
         with:
-          elixir-version: '1.15'
+          otp-version: ${{ matrix.otp_version }}
+          elixir-version: '1.17'
           install-hex: true
           install-rebar: true
 

.github/workflows/test.yml

@@ -30,7 +30,8 @@ jobs:
       - name: Install Elixir (for Mix dependencies)
         uses: erlef/setup-beam@v1
         with:
-          elixir-version: '1.15'
+          otp-version: ${{ matrix.otp_version }}
+          elixir-version: '1.17'
           install-hex: true
           install-rebar: true