Adding changelog

Author: S-Saranya1

.changes/next-release/feature-AWSSDKforJavav2-2f79ee6.json

@@ -0,0 +1,6 @@
+{
+    "type": "feature",
+    "category": "AWS SDK for Java v2",
+    "contributor": "",
+    "description": "Adding 'disable_ec2_metadata' in the profile property, this can be used to disable IMDS credential fetching."
+}