chore: Bumped Dynamo base image tag to 25.06-cuda12.9-devel-ubuntu24.04 (#6239)

Signed-off-by: Dmitry Tokarev <dtokarev@nvidia.com>

container/context.yaml

@@ -11,7 +11,7 @@
 
 dynamo:
   base_image: nvcr.io/nvidia/cuda-dl-base
-  base_image_tag: 25.01-cuda12.8-devel-ubuntu24.04
+  base_image_tag: 25.06-cuda12.9-devel-ubuntu24.04
   epp_image: us-central1-docker.pkg.dev/k8s-staging-images/gateway-api-inference-extension/epp:v0.5.1
   frontend_image: nvcr.io/nvidia/base/ubuntu:noble-20250619
   python_version: "3.12"