Deprecated usage warning

[shilangyu]

When building a flutter app which uses this plugin, a deprecation warning is issued:

/Users/xxx/.pub-cache/hosted/pub.dartlang.org/health_kit_reporter-2.1.0/ios/Classes/Extensions+SwiftHealthKitReporterPlugin.swift:626:45: warning: 'sampleQuery(type:predicate:sortDescriptors:limit:resultsHandler:)' was deprecated in iOS 11: Use special functions for fetching Quantity/Category/Workout samples. For Quantity Samples will return with SI units
                let query = try reporter.reader.sampleQuery(

I do not know much about iOS development so I cannot comment on it more than just pasting the warning here.