Added sdl2 dependency

Author: djthorpe

.github/workflows/on_pull_request_merge.yaml

@@ -19,6 +19,8 @@ jobs:
           go-version: ${{ matrix.go-version }}
       - name: Run tests
         run: |
-          sudo apt install -y libavcodec-dev libavdevice-dev libavfilter-dev libavutil-dev libswscale-dev libswresample-dev libchromaprint-dev
+          sudo apt install -y libavcodec-dev libavdevice-dev libavfilter-dev libavutil-dev libswscale-dev libswresample-dev
+          sudo apt install -y libchromaprint-dev
+          sudo apt install -y libsdl2-dev
           make container-test