Update ovms version to the 2025.4 (#1579)

Author: jcchr

deploy/charts/impt/chart/charts/modelmesh-serving/values.yaml

@@ -44,7 +44,7 @@ modelserver:
   image:
     registry: docker.io
     repository: openvino
-    name: model_server:2025.3
+    name: model_server:2025.4
 
 controllerResources:
   requests:

platform/services/installer/app/templates/impt-values.yaml.j2

@@ -397,7 +397,7 @@ modelmesh-serving:
     image:
       registry: {{ registry }}
       repository: local-third-party
-      name: model_server:2025.3
+      name: model_server:2025.4
   modelmeshImageTag: 'v0.12.0.2'
   {% endif %}
   s3_endpoint_url: "http://impt-seaweed-fs.impt.svc.cluster.local:8333"