Explicitly install ImageMagick in CI (except for libvips tests) (#32534)

.github/workflows/test-ruby.yml

@@ -143,7 +143,7 @@ jobs:
         uses: ./.github/actions/setup-ruby
         with:
           ruby-version: ${{ matrix.ruby-version}}
-          additional-system-dependencies: ffmpeg libpam-dev
+          additional-system-dependencies: ffmpeg imagemagick libpam-dev
 
       - name: Load database schema
         run: |
@@ -245,7 +245,7 @@ jobs:
         uses: ./.github/actions/setup-ruby
         with:
           ruby-version: ${{ matrix.ruby-version}}
-          additional-system-dependencies: ffmpeg libpam-dev libyaml-dev
+          additional-system-dependencies: ffmpeg libpam-dev
 
       - name: Load database schema
         run: './bin/rails db:create db:schema:load db:seed'
@@ -325,7 +325,7 @@ jobs:
         uses: ./.github/actions/setup-ruby
         with:
           ruby-version: ${{ matrix.ruby-version}}
-          additional-system-dependencies: ffmpeg
+          additional-system-dependencies: ffmpeg imagemagick
 
       - name: Set up Javascript environment
         uses: ./.github/actions/setup-javascript
@@ -445,7 +445,7 @@ jobs:
         uses: ./.github/actions/setup-ruby
         with:
           ruby-version: ${{ matrix.ruby-version}}
-          additional-system-dependencies: ffmpeg
+          additional-system-dependencies: ffmpeg imagemagick
 
       - name: Set up Javascript environment
         uses: ./.github/actions/setup-javascript