set a higer UID_MAX (#1788)

Co-authored-by: Yufan Song <33971064+yufansong@users.noreply.github.com>

containers/app/Dockerfile

@@ -45,6 +45,7 @@ RUN apt-get update -y \
     && apt-get install -y curl ssh sudo
 
 RUN sed -i 's/^UID_MIN.*/UID_MIN 499/' /etc/login.defs # Default is 1000, but OSX is often 501
+RUN sed -i 's/^UID_MAX.*/UID_MAX 1000000/' /etc/login.defs # Default is 60000, but we've seen up to 200000
 
 RUN groupadd app
 RUN useradd -l -m -u $OPENDEVIN_USER_ID -s /bin/bash opendevin && \