[OpenVINO backend] Remove usage of deprecated openvino.runtime (#21418)

* Remove runtime

* Try to init ov first

* Revert "Try to init ov first"

This reverts commit de0fb67.

* Restart CI

* Update keras/src/backend/openvino/core.py

* Update keras/src/backend/openvino/core.py

* Update formatting

* Restart CI

Author: p-wysocki

keras/src/backend/openvino/core.py

@@ -4,11 +4,11 @@
 
 import numpy as np
 import openvino as ov
-import openvino.runtime.opset14 as ov_opset
+import openvino.opset14 as ov_opset
 from openvino import Model
 from openvino import Tensor
+from openvino import Type
 from openvino import compile_model
-from openvino.runtime import Type
 
 from keras.src import tree
 from keras.src.backend.common import KerasVariable

keras/src/backend/openvino/math.py

@@ -1,4 +1,4 @@
-import openvino.runtime.opset14 as ov_opset
+import openvino.opset14 as ov_opset
 from openvino import Type
 
 from keras.src.backend.openvino.core import OpenVINOKerasTensor

keras/src/backend/openvino/nn.py

@@ -1,4 +1,4 @@
-import openvino.runtime.opset14 as ov_opset
+import openvino.opset14 as ov_opset
 from openvino import Type
 
 from keras.src import backend

keras/src/backend/openvino/numpy.py

@@ -1,5 +1,5 @@
 import numpy as np
-import openvino.runtime.opset14 as ov_opset
+import openvino.opset14 as ov_opset
 from openvino import Type
 
 from keras.src.backend import config

keras/src/backend/openvino/random.py

@@ -1,5 +1,5 @@
 import numpy as np
-import openvino.runtime.opset14 as ov_opset
+import openvino.opset14 as ov_opset
 from openvino import Type
 
 from keras.src.backend.config import floatx

keras/src/backend/openvino/trainer.py

@@ -1,6 +1,6 @@
 import numpy as np
 import openvino as ov
-import openvino.runtime.opset14 as ov_opset
+import openvino.opset14 as ov_opset
 
 from keras.src import backend
 from keras.src import callbacks as callbacks_module