Ci with dialyzer - old config for memories only

ci.yml

# .github/workflows/ci.yml

on: push

jobs:
  ci:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        otp: [22.2.8]
        elixir: [1.11.2]

    services:
      db:
        image: postgres:11-alpine
        env:
          POSTGRES_USER: postgres
          POSTGRES_PASSWORD: postgres
          POSTGRES_DB: compass_test
        ports: ["5432:5432"]
        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5

    steps:
      - uses: actions/checkout@v2

      - name: Setup elixir
      - uses: actions/setup-elixir@v1
        with:
          otp-version: ${{ matrix.otp }}
          elixir-version: ${{ matrix.elixir }}

      - name: Setup Node
        uses: actions/setup-node@v1
        with:
          node-version: 12.15.0

      - name: Fetch Mix dependencies cache
      - uses: actions/cache@v1
        id: mix-cache
        with:
          path: deps
          key: ${{ runner.os }}-mix-${{ hashFiles(format('{0}{1}', github.workspace, '/mix.lock')) }}

      - uses: actions/cache@v1
        id: build-cache
        with:
          path: _build
          key: ${{ runner.os }}-build-${{ matrix.otp }}-${{ matrix.elixir }}-${{ hashFiles(format('{0}{1}', github.workspace, '/mix.lock')) }}

      - name: Find yarn cache location
        id: yarn-cache
        run: echo "::set-output name=dir::$(yarn cache dir)"

      - uses: actions/cache@v1
        with:
          path: ${{ steps.yarn-cache.outputs.dir }}
          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
          restore-keys: |
            ${{ runner.os }}-yarn-

      - name: Install Mix dependencies
        if: steps.mix-cache.outputs.cache-hit != 'true'
        run: |
          mix local.rebar --force
          mix local.hex --force
          mix deps.get

      - name: Install Yarn dependencies
        if: steps.yarn-cache.outputs.cache-hit != 'true'
        run: |
          (cd assets && yarn)

      - name: Check Formatting
        run: mix format --check-formatted

      - name: Check Security
        run: mix sobelow --config

      - name: Static Code Analysis
        run: mix credo --strict

      - name: Retrieve PLT Cache
        uses: actions/cache@v1
        id: plt-cache
        with:
          path: priv/plts
          key: ${{ runner.os }}-${{ matrix.otp }}-${{ matrix.elixir }}-plts-${{ hashFiles(format('{0}{1}', github.workspace, '/mix.lock')) }}

      - name: Create PLTs
        if: steps.plt-cache.outputs.cache-hit != 'true'
        run: |
          mkdir -p priv/plts
          mix dialyzer --plt

      - name: Run dialyzer
        run: mix dialyzer --no-check --halt-exit-status

      - name: Tests
        run: mix test