fix: mlflow plugin model deletion

[cile98]

What does the PR do?

This PR fixes a bug where deleting a deployed model using the mlflow plugin (e.g., name) would also delete other models with similar prefixes (e.g., name_1).

The fix ensures an exact match by appending a / to the folder prefix. It also introduces a paginator to handle folders containing more than 1,000 objects correctly.

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Commit Type:

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• build
• ci
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• feat
• fix
• perf
• refactor
• revert
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• test

Where should the reviewer start?

deploy/mlflow-triton-plugin/mlflow_triton/deployments.py

Test plan:

• Deploy two models with the same prefix (model and model_1)
• Delete model and check whether model_1 is still present

Caveats:

This was tested on Minio S3 storage. I've tried to optimize it to work with other S3-compatible storage, but I don't have the means to test it extensively

Background

I was deleting a model from Triton Inference Server using the MLflow plugin, and that led to all the models with the same prefix as the requested model name being deleted...

Related Issues: (use one of the action keywords Closes / Fixes / Resolves / Relates to)

• closes GitHub issue: #8266