Split lint and compilation into two separate tests

Author: warmwaffles

.github/workflows/ci.yml

@@ -7,18 +7,30 @@ on:
       - main
 
 jobs:
+  lint:
+    runs-on: ubuntu-20.04
+    env:
+      MIX_ENV: test
+    name: Lint
+    steps:
+      - uses: actions/checkout@v2
+      - uses: erlef/setup-elixir@v1
+        with:
+          otp-version: "24"
+          elixir-version: "1.12"
+      - run: mix deps.get && mix deps.unlock --check-unused
+      - run: mix format --check-formatted
   test:
     runs-on: ubuntu-20.04
     env:
       MIX_ENV: test
-    name: OTP ${{matrix.otp}} / Elixir ${{matrix.elixir}}
+    name: Ubuntu / OTP ${{matrix.otp}} / Elixir ${{matrix.elixir}}
     strategy:
       fail-fast: false
       matrix:
         include:
           - elixir: "1.12"
             otp: "24"
-            lint: true
           - elixir: "1.12"
             otp: "23"
           - elixir: "1.11"
@@ -38,11 +50,6 @@ jobs:
           otp-version: ${{matrix.otp}}
           elixir-version: ${{matrix.elixir}}
       - 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 compile
       - run: mix test