[NOTICE] Branching for Ozone 2.0

[Wei-Chiu Chuang]

I'm about to fork the master branch into ozone-2.0 at this commit:

commit c9990cacaa7e8f943bc80bdc6d9a7ee8b1a49b32
Author: Wei-Chiu Chuang <weic...@apache.org>
Date:   Tue Mar 18 10:53:02 2025 -0700

    HDDS-12576. [Ozone 2.0] Update proto.lock files (#8064)

For any commits landing in master from now on, please use 2.1.0 as fix
version!

I'll review git commit history and jira to fix any inconsistencies!