message: Changed currentversion.json host
diff: public async static Task<BravoUpdate> CheckForUpdateAsync(UpdateChannelType updateChannel, CancellationToken cancellationToken)
  {
  - using var httpClient = new HttpClient();
  -
  var channelPath = updateChannel switch
  {
  UpdateChannelType.Stable => "bravo-public",
  _ => throw new BravoUnexpectedException($"Unexpected { nameof(UpdateChannelType) } '{ updateChannel }'")
  };
  - var requestUri = $"http://artifacts.bravo.bi/{ channelPath }/currentversion.json?nocache={ DateTimeOffset.Now.ToUnixTimeSeconds() }";
  + using var httpClient = new HttpClient();
  + var requestUri = $"https://bravorelease.blob.core.windows.net/{ channelPath }/currentversion.json?nocache={ DateTimeOffset.Now.ToUnixTimeSeconds() }";
  var json = await httpClient.GetStringAsync(requestUri, cancellationToken).ConfigureAwait(false);
  using var document = JsonDocument.Parse(json);
  