What does it mean when an AWS ECR user lacks authorization to execute ecr-public:GetAuthorizationToken action on any resource?

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When an AWS ECR user lacks authorization to execute ecr-public:GetAuthorizationToken action on any resource, it means that they do not have the necessary permissions to obtain an authentication token for the ECR public registry. This may prevent them from performing certain actions within the registry, such as pushing or pulling images, and may limit their ability to work with the registry in general. To resolve this issue, the user's permissions should be adjusted to include the necessary privileges to perform the desired actions within the ECR public registry.