Fix: Enable model monitoring

[felix-datatonic]

Description

Model monitoring metadata isn't persisted during XGBoost training. Further, caching has been disabled for lookup_model components in all pipelines.

How has this been tested?

• clean model registry
• end-to-end tests (with and without caching)
• ensure that batch prediction jobs return monitoring results

Checklist

• I have commented my code, particularly in hard-to-understand areas
• I have successfully run the E2E tests, and have included the links to the pipeline runs below
  - [ ] I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have updated any relevant documentation to reflect my changes
• I have assigned a reviewer and messaged them

Pipeline run links:

[felix-datatonic]

/gcbrun