updating docker ignore for skia_rive_optimized
diff --git a/.dockerignore b/.dockerignore
index 6cfb7dc..7500a2f 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -60,6 +60,7 @@
 
 # Skia dependencies
 skia/dependencies/skia
+skia/dependencies/skia_rive_optimized
 skia/dependencies/glfw_build
 skia/dependencies/FFmpeg
 skia/dependencies/x264