Option downloadRetries is off by 1

[Sebastian-Webster]

There are two instances in the Downloader.ts file where the comparison downloadTries < options.downloadRetries is. Because a less than operator is being used instead of less than or equal operator, the amount of retries will be options.downloadRetries - 1.

[Sebastian-Webster]

Also the downloadBinary function throws if downloadTries >= options.downloadRetries. This will need to be changed to a greater than operator instead of greater than or equal operator to prevent the off by 1 issue as well.