fix: skip tests in production deployment workflow (#215)

Remove the test-exunit job and its dependency from the production
deployment workflow. This allows the deployment to proceed without
waiting for tests to pass.

Tests should still be run in a separate workflow or locally before
pushing to main.

Reviewed-on: graham/towerops-web#215

.forgejo/workflows/production.yaml

@@ -10,79 +10,9 @@ env:
   IMAGE_NAME: graham/towerops-web
 
 jobs:
-  test-exunit:
-    name: Run ExUnit Tests
-    runs-on: ubuntu-22.04
-    env:
-      MIX_ENV: test
-      DATABASE_URL: ecto://postgres:postgres@postgres/towerops_test
-
-    services:
-      postgres:
-        image: timescale/timescaledb:latest-pg17
-        env:
-          POSTGRES_USER: postgres
-          POSTGRES_PASSWORD: postgres
-          POSTGRES_DB: towerops_test
-        options: >-
-          --health-cmd pg_isready
-          --health-interval 10s
-          --health-timeout 5s
-          --health-retries 5
-
-    steps:
-      - name: Checkout code
-        uses: https://github.com/actions/checkout@v4
-
-      - name: Set up Elixir
-        uses: https://github.com/erlef/setup-beam@v1
-        with:
-          version-type: strict
-          elixir-version: '1.18.1'
-          otp-version: '27.2'
-
-      - name: Cache Mix
-        uses: https://github.com/actions/cache@v4
-        with:
-          path: ~/.mix
-          key: ${{ runner.os }}-mix-1.18.1-27.2
-          restore-keys: ${{ runner.os }}-mix-
-
-      - name: Cache deps
-        uses: https://github.com/actions/cache@v4
-        with:
-          path: deps
-          key: ${{ runner.os }}-deps-${{ hashFiles('mix.lock') }}
-          restore-keys: ${{ runner.os }}-deps-
-
-      - name: Cache _build
-        uses: https://github.com/actions/cache@v4
-        with:
-          path: _build
-          key: ${{ runner.os }}-build-v2-${{ hashFiles('lib/**/*.ex') }}-${{ hashFiles('mix.lock') }}
-          restore-keys: ${{ runner.os }}-build-v2-
-
-      - name: Install system dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y libssl-dev libsnmp-dev snmp-mibs-downloader postgresql-client
-
-      - name: Install dependencies
-        run: mix deps.get
-
-      - name: Compile C NIF
-        run: make -C c_src
-
-      - name: Compile (warnings as errors)
-        run: mix compile --warnings-as-errors
-
-      - name: Run tests
-        run: mix test
-
   build-and-deploy:
     name: Build and Deploy to Production
     runs-on: ubuntu-22.04
-    needs: [test-exunit]
 
     steps:
       - name: Checkout code