Add hyva back to sponsors

[wigman]

Hyvä has sponsored twice the amount Sansec has sponsored (and continues to sponsor till date), so it seems fair to still be mentioned as Gold Sponsor.

[wigman]

For reference: https://opencollective.com/warden

@navarr

[bap14]

@wigman According to Open Collective, we only have "Backers" and "Supporters", and only "Supporters" have the benefit of being listed on the Warden site. They're also listing Hyvä as a "Backer" level, not "Supporter". That's the only reason I am not accepting this one, but @navarr can chime in and override it if he feels.

[navarr]

@bap14 I've spoken directly to Willem about this. I'd like to leave this open while I think of ways of honoring previous sponsors. Hyvå was incredibly lovely and helpful as was Swiftotter and they deserve some amount of continuing recognition (that doesn't detract the current sponsors)

[bap14]

@navarr I figured there was a history there I wasn't aware of.

[ihor-sviziev]

Just an idea - what if add to sponsors not only current sponsors, but also those who donated let's say >$500 over last year?
Or just top sponsors by donation amount