Not able to install NServiceBus.AmazonSQS 6.* nuget package

While try to download NServiceBus.AmazonSQS 6.*, nuget package we are getting below error

Unable to load the service index for source https://f.feedz.io/particular-software/packages/nuget/index.json.
Response status code does not indicate success: 503 (Service Unavailable).
Time Elapsed: 00:01:10.5242318

It sounds like you are trying to use a sample from our docs. The feeds.io service is our staging area. It is not required for most things, and we can’t guarantee uptime. If it is still down for you, it may be blocked in your environment. In that case, delete the nuget.config file from the download, and everything should work fine only using NuGet.