created the 1.31 release config yaml (#1498)

release/config/1.31/1.31.yaml

@@ -0,0 +1,25 @@
+# Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+---
+apiVersion: distro.eks.amazonaws.com/v1alpha1
+kind: ReleaseChannel
+metadata:
+  creationTimestamp: null
+  name: 1-31
+spec:
+  snsTopicARN: "arn:aws:sns:us-east-1:379412251201:eks-distro-updates"
+status:
+  active: true
+  latestRelease: 1