Update CloudCasa description in adopters list.

[draghuram]

Thank you for contributing to Velero!

Please add a summary of your change

Updates CloudCasa description in adopters file.

Please indicate you've done the following:

• [Yes ] Accepted the DCO. Commits without the DCO will delay acceptance.
• Created a changelog file or added /kind changelog-not-required as a comment on this pull request.
• Updated the corresponding documentation in site/content/docs/main.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3b8370e) 61.64% compared to head (5c7c61c) 61.64%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7439   +/-   ##
=======================================
  Coverage   61.64%   61.64%           
=======================================
  Files         262      262           
  Lines       28477    28477           
=======================================
  Hits        17556    17556           
  Misses       9689     9689           
  Partials     1232     1232           

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[shubham-pampattiwar]

/kind changelog-not-required