feat(docker): set nodejs max old space size based # of ans-104 workers

Sets --max-old-space-size nodejs param to 8192 (8GB) if workers > 1 and
2048 (2GB) if workers <= 1. This provides a reasonable default for users
who either don't want to index ANS-104 bundles or use the default settings
to index ANS-104 bundles as well as power users who increase their worker
count.

docker-entrypoint.sh

@@ -7,7 +7,12 @@ mkdir -p data/sqlite
 /nodejs/bin/node dist/migrate.js up
 
 if [ -z "$NODE_MAX_OLD_SPACE_SIZE" ]; then
-  NODE_MAX_OLD_SPACE_SIZE=2048
+  # 8GB for > 1 workers, 2GB for <= 1 worker
+  if [ "$ANS104_UNBUNDLE_WORKERS" -gt "1" ]; then
+    NODE_MAX_OLD_SPACE_SIZE=8192
+  else
+    NODE_MAX_OLD_SPACE_SIZE=2048
+  fi
 fi
 
 # Run the gateway service