Remove deprecated usage of imagemagick (#37488)

.github/workflows/test-ruby.yml

@@ -173,93 +173,6 @@ jobs:
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
-  test-imagemagick:
-    name: ImageMagick tests
-    runs-on: ubuntu-latest
-
-    needs:
-      - build
-
-    services:
-      postgres:
-        image: postgres:14-alpine
-        env:
-          POSTGRES_PASSWORD: postgres
-          POSTGRES_USER: postgres
-        options: >-
-          --health-cmd pg_isready
-          --health-interval 10ms
-          --health-timeout 3s
-          --health-retries 50
-        ports:
-          - 5432:5432
-
-      redis:
-        image: redis:7-alpine
-        options: >-
-          --health-cmd "redis-cli ping"
-          --health-interval 10ms
-          --health-timeout 3s
-          --health-retries 50
-        ports:
-          - 6379:6379
-
-    env:
-      DB_HOST: localhost
-      DB_USER: postgres
-      DB_PASS: postgres
-      COVERAGE: ${{ matrix.ruby-version == '.ruby-version' }}
-      RAILS_ENV: test
-      ALLOW_NOPAM: true
-      PAM_ENABLED: true
-      PAM_DEFAULT_SERVICE: pam_test
-      PAM_CONTROLLED_SERVICE: pam_test_controlled
-      OIDC_ENABLED: true
-      OIDC_SCOPE: read
-      SAML_ENABLED: true
-      CAS_ENABLED: true
-      BUNDLE_WITH: 'pam_authentication test'
-      GITHUB_RSPEC: ${{ matrix.ruby-version == '.ruby-version' && github.event.pull_request && 'true' }}
-      MASTODON_USE_LIBVIPS: false
-
-    strategy:
-      fail-fast: false
-      matrix:
-        ruby-version:
-          - '3.2'
-          - '3.3'
-          - '.ruby-version'
-    steps:
-      - uses: actions/checkout@v5
-
-      - uses: actions/download-artifact@v6
-        with:
-          path: './'
-          name: ${{ github.sha }}
-
-      - name: Expand archived asset artifacts
-        run: |
-          tar xvzf artifacts.tar.gz
-
-      - name: Set up Ruby environment
-        uses: ./.github/actions/setup-ruby
-        with:
-          ruby-version: ${{ matrix.ruby-version}}
-          additional-system-dependencies: ffmpeg imagemagick libpam-dev
-
-      - name: Load database schema
-        run: './bin/rails db:create db:schema:load db:seed'
-
-      - run: bin/rspec --tag attachment_processing
-
-      - name: Upload coverage reports to Codecov
-        if: matrix.ruby-version == '.ruby-version'
-        uses: codecov/codecov-action@v5
-        with:
-          files: coverage/lcov/mastodon.lcov
-        env:
-          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
-
   test-e2e:
     name: End to End testing
     runs-on: ubuntu-latest