Exclude automated eni-max-pods.txt PR's from release notes (#1498)

Author: cartermckinnon

.github/workflows/sync-eni-max-pods.yaml

@@ -42,6 +42,8 @@ jobs:
             commit-message: "Update eni-max-pods.txt"
             committer: "GitHub <[email protected]>"
             author: "GitHub <[email protected]>"
+            labels: |
+              changelog/exclude
             title: "Update eni-max-pods.txt"
             body: |
               Generated by [aws/amazon-vpc-cni-k8s](https://github.com/aws/amazon-vpc-cni-k8s):