Update reference to Ray ROCm image

[kryanbeane]

Issue link

Part of RHOAIENG-20570, the image has been built and is in quay.io/modh/ray

What changes have been made

Updated doc to include most up to date ROCm images

Verification steps

N/A

[szaher]

/lgtm
/approve

[openshift-ci]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.40%. Comparing base (c311665) to head (ff96aad).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #810   +/-   ##
=======================================
  Coverage   92.40%   92.40%           
=======================================
  Files          23       23           
  Lines        1396     1396           
=======================================
  Hits         1290     1290           
  Misses        106      106           

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[openshift-ci]

New changes are detected. LGTM label has been removed.