change: bump djl-inference 0.27.0 neuronx sdk to 2.18.1 (#4592)

Author: tosterberg

src/sagemaker/image_uri_config/djl-neuronx.json

@@ -19,7 +19,7 @@
                 "ca-west-1": "204538143572"
             },
             "repository": "djl-inference",
-            "tag_prefix": "0.27.0-neuronx-sdk2.18.0"
+            "tag_prefix": "0.27.0-neuronx-sdk2.18.1"
         },
          "0.26.0": {
             "registries": {