ai/worker: Add sd15-v2v image support

[victorges]

What does this pull request do? Explain your changes. (required)
This adds support for the live-video-to-video:streamdiffusion-sd15-v2v image for
having warmed up node pools with streamv2v enabled (cached attention)

Specific updates (required)

• add image config

How did you test each of these updates (required)
go test ./ai/worker

Does this pull request close any open issues?
Implements streamv2v support

Checklist:

• Read the contribution guide
• make runs successfully
• All tests in ./test.sh pass
• README and other documentation updated
• Pending changelog updated

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 31.66744%. Comparing base (9f123db) to head (2bed92a).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@                 Coverage Diff                 @@
##              master       #3823         +/-   ##
===================================================
- Coverage   31.67769%   31.66744%   -0.01025%     
===================================================
  Files            159         159                 
  Lines          39018       39018                 
===================================================
- Hits           12360       12356          -4     
- Misses         25763       25768          +5     
+ Partials         895         894          -1     

Files with missing lines	Coverage Δ
ai/worker/docker.go	70.79108% <ø> (+0.20284%)	⬆️

... and 2 files with indirect coverage changes

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Files with missing lines	Coverage Δ
ai/worker/docker.go	70.79108% <ø> (+0.20284%)	⬆️

... and 2 files with indirect coverage changes

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