Update docker.yml

Author: Frotty

.github/workflows/docker.yml

@@ -18,7 +18,7 @@ jobs:
 
       - name: Smoke test
         run: |
-          docker run --rm wurstscript:ci bash -c "
+          docker run --rm wurstscript:ci sh -c "
             command -v grill || (echo 'grill not found' && exit 1)
             ls /home/wurstuser/.wurst/wurst-compiler/wurstscript.jar || (echo 'wurstscript.jar not found' && exit 1)
             echo 'All checks passed'