Add init file in tests,upgrade folder to mitigate support methods import error

Author: abhijeet-dhumal

Diff for: tests/__init__.py

@@ -76,7 +76,7 @@
     export_env,
 )
 
-from unit_test_support import (
+from tests.unit_test_support import (
     createClusterWithConfig,
     createTestDDP,
     createDDPJob_no_cluster,

Diff for: tests/unit_test.py

@@ -8,14 +8,13 @@
 
 import pytest
 
-from support import *
+from tests.e2e.support import *
 from codeflare_sdk.cluster.cluster import get_cluster
 
 namespace = "test-ns-rayupgrade"
 
 
 # Creates a Ray cluster
-@pytest.mark.openshift
 class TestMNISTRayClusterUp:
     def setup_method(self):
         initialize_kubernetes_client(self)