Sentry and Ichizoku Inc. Sponsor Data

[marcoroth]

I think we have some clashing sponsor data:

https://www.rubyevents.org/sponsors/ichizoku-inc https://www.rubyevents.org/sponsors/sentry

From what I can tell: Sentry != Ichizoku, but "Ichizoku is Japan's only Sentry authorized reseller. We support Japanese customers in utilizing Sentry through Japanese documentation, videos, and support channels."