CI housekeeping (#83)

Author: kianmeng

.github/workflows/ci.yml

@@ -14,26 +14,31 @@ jobs:
       fail-fast: false
       matrix:
         include:
-        - elixir: '1.11.4'
-          otp: '23.3'
-        - elixir: '1.14.5'
-          otp: '24.3'
-        - elixir: '1.15.0'
-          otp: '26.0.1'
+          - elixir: 1.11.4
+            otp: 23.3
+          - elixir: 1.17.1
+            otp: 27.0
+            lint: true
     steps:
-      - uses: actions/checkout@v2
-      - uses: erlef/setup-elixir@v1
+      - uses: actions/checkout@v4
+
+      - uses: erlef/setup-beam@v1
         with:
           otp-version: ${{matrix.otp}}
           elixir-version: ${{matrix.elixir}}
           version-type: strict
-      - name: Install Dependencies
-        run: mix deps.get --only test
+
+      - run: mix deps.get --only test
+
       - run: mix format --check-formatted
         if: ${{ matrix.lint }}
+
       - run: mix deps.get && mix deps.unlock --check-unused
         if: ${{ matrix.lint }}
+
       - run: mix deps.compile
+
       - run: mix compile --warnings-as-errors
         if: ${{ matrix.lint }}
+
       - run: mix test