update MLflow general & operator imgs.

Signed-off-by: Alyssa Goins <agoins@redhat.com>

Author: alyssacgoins

.github/workflows/e2e-test.yml

@@ -361,8 +361,8 @@ jobs:
         if: ${{ steps.create-cluster.outcome == 'success' }}
         with:
           namespace: 'opendatahub'
-          mlflow_image: quay.io/${{ github.repository_owner == 'red-hat-data-services' && 'rhoai' || 'opendatahub' }}/mlflow:odh-stable
-          mlflow_operator_image: quay.io/${{ github.repository_owner == 'red-hat-data-services' && 'rhoai' || 'opendatahub' }}/mlflow-operator:odh-stable
+          mlflow_image: quay.io/${{ github.repository_owner == 'red-hat-data-services' && 'rhoai' || 'opendatahub' }}/mlflow:odh-stable-e45541f73f40f6d235be63320b41fbb67c85e503
+          mlflow_operator_image: quay.io/${{ github.repository_owner == 'red-hat-data-services' && 'rhoai' || 'opendatahub' }}/mlflow-operator:8ab07a89d6d2d6bc2ffa0c8601f4a856a4cb1b18
           backend_store: ${{ matrix.backend_store }}
           artifact_storage: ${{ matrix.artifact_storage }}
           registry_store: ${{ matrix.registry_store }}