fix: increase max docker image size

Author: zeyu2001

cull/constants.py

@@ -1,5 +1,5 @@
 MAX_IMAGE_WORKERS = 4
-MAX_FILE_BYTES = 200 * 1024 * 1024
+MAX_FILE_BYTES = 4 * 1024 * 1024 * 1024
 DOCKER_PULL_TIMEOUT_S = 300
 
 LOCK_FILES = frozenset({