pre/post upgrade tests for MR set to deprecated (#2550)

Author: kobihk

ods_ci/tests/Tests/0200__rhoai_upgrade/0201__pre_upgrade.robot

@@ -231,7 +231,7 @@ Data Science Pipelines Pre Upgrade Configuration
 
 Model Registry Pre Upgrade Set Up
     [Documentation]    Creates a Model Registry instance and registers a model/version
-    [Tags]      Upgrade     ModelRegistryUpgrade
+    [Tags]      Upgrade     ModelRegistryUpgrade    deprecatedTest
     Model Registry Pre Upgrade Scenario
 
 Long Running Jupyter Notebook

ods_ci/tests/Tests/0200__rhoai_upgrade/0203__post_upgrade.robot

@@ -311,7 +311,7 @@ Data Science Pipelines Post Upgrade Verifications
 
 Model Registry Post Upgrade Verification
     [Documentation]    Verifies that registered model/version in pre-upgrade is present after the upgrade
-    [Tags]      Upgrade     ModelRegistryUpgrade
+    [Tags]      Upgrade     ModelRegistryUpgrade    deprecatedTest
     Skip If Operator Starting Version Is Not Supported      minimum_version=2.14.0
     Model Registry Post Upgrade Scenario
     [Teardown]      Post Upgrade Scenario Teardown