fix: use correct scrapy-ui image tag :main

Changed image tag from :latest to :main for ghcr.io/valknarness/scrapy-ui

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

scrapy/compose.yaml

@@ -55,7 +55,7 @@ services:
       - compose_network
 
   scrapy_ui:
-    image: ${SCRAPY_UI_IMAGE:-ghcr.io/valknarness/scrapy-ui:latest}
+    image: ${SCRAPY_UI_IMAGE:-ghcr.io/valknarness/scrapy-ui:main}
     container_name: ${SCRAPY_COMPOSE_PROJECT_NAME}_ui
     restart: unless-stopped
     environment: