Skip installing SDL2 on ncurses build on GHA (#55088)

Author: BrettDong

.github/workflows/matrix.yml

@@ -224,8 +224,11 @@ jobs:
       if: ${{ env.SKIP == 'false' && runner.os == 'Linux' }}
       run: |
           sudo apt-get update
-          sudo apt-get install libncursesw5-dev libsdl2-dev libsdl2-ttf-dev libsdl2-image-dev \
-            libsdl2-mixer-dev libpulse-dev ccache gettext parallel
+          sudo apt-get install libncursesw5-dev ccache gettext parallel
+    - name: install SDL2 dependencies (ubuntu)
+      if: ${{ env.SKIP == 'false' && runner.os == 'Linux' && matrix.tiles == 1 }}
+      run: |
+          sudo apt-get install libsdl2-dev libsdl2-ttf-dev libsdl2-image-dev libsdl2-mixer-dev libpulse-dev
     - name: install old GCC (Ubuntu)
       if: ${{ env.SKIP == 'false' && runner.os == 'Linux' && (matrix.compiler == 'g++-7' || matrix.compiler == 'g++-8') }}
       run: |