Add isIndexNotFoundException utility to AlertingException#934

riysaxen-amzn merged 2 commits intoopensearch-project:mainopensearch-project/common-utils:mainfrom

manaswini1920:feature/sdk-index-not-found-util-mainmanaswini1920/common-utils:feature/sdk-index-not-found-util-mainCopy head branch name to clipboard