[fix] update allowed instance types for DJLModels

Author: siddvenk

src/sagemaker/djl_inference/defaults.py

@@ -47,6 +47,8 @@
     "ml.g4dn",
     "ml.g5",
     "ml.p3",
-    "ml.p4",
+    "ml.p3dn"
+    "ml.p4d",
+    "ml.p4de"
     "local_gpu",
 }