Use shared Elixir CI workflow

Author: dannote

.github/workflows/ci.yml

@@ -2,46 +2,13 @@ name: CI
 
 on:
   push:
-    branches: [master]
+    branches: [master, main]
   pull_request:
-    branches: [master]
+    branches: [master, main]
+
+permissions:
+  contents: read
 
 jobs:
   ci:
-    runs-on: ubuntu-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - elixir: '1.15'
-            otp: '25'
-          - elixir: '1.16'
-            otp: '26'
-          - elixir: '1.17'
-            otp: '27'
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: erlef/setup-beam@v1
-        with:
-          elixir-version: ${{ matrix.elixir }}
-          otp-version: ${{ matrix.otp }}
-
-      - name: Restore Mix cache
-        uses: actions/cache@v4
-        with:
-          path: |
-            deps
-            _build
-          key: ${{ runner.os }}-mix-${{ matrix.elixir }}-${{ matrix.otp }}-${{ hashFiles('**/mix.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-mix-${{ matrix.elixir }}-${{ matrix.otp }}-
-            ${{ runner.os }}-mix-
-
-      - name: Install dependencies
-        run: mix deps.get
-
-      - name: Run CI
-        run: mix ci
+    uses: elixir-vibe/actions/.github/workflows/elixir-ci.yml@v1