SqlServerCache does not pass on CancellationToken

This might be by design, but the following lines does not pass on the supplied token and will therefor use default(CancellationToken) instead.

Line 112 in be34c21

var value = await _dbOperations.GetCacheItemAsync(key);

Line 140 in be34c21

await _dbOperations.RefreshCacheItemAsync(key);

Line 166 in be34c21

await _dbOperations.DeleteCacheItemAsync(key);

Line 220 in be34c21

await _dbOperations.SetCacheItemAsync(key, value, options);

Yeah, looks like a bug to me (@Tratcher do you agree?)

We would accept a PR for this.

Yes, it's worth a try.

Thanks @jovnas for the contribution!