Bug V2.0.1 version - New tasks failing with RPC error code failing to cleanup existing kerberos files 🔴

- We were early adopters of https://github.com/aws/credentials-fetcher/releases/tag/v.2.0.1 and we performed a thorough testing on our end
- We observed a newly introduced critical issue where new tasks failed to launch on the host with error.

` rpc error: code = Unknown desc = failed to remove Kerberos file: remove /var/credentials-fetcher/krbdir/efa19bd3b98aca8a1772/gAp50SurveysR: directory not empty`

- There is no workaround for this issue and the service containers die rapidly
- This is a critical issue and should be stopped from rolling out in the AMI

Let us know in case there are more questions

Start by reproducing the new-task launch failure reported after credentials-fetcher v2.0.1, focusing on the cleanup error for the Kerberos file under /var/credentials-fetcher/krbdir. Trace why cleanup encounters a non-empty directory and verify that service containers launch successfully without the RPC error.

Written by the indexing model from the issue text.