Update all.json (#309)

but it is a generic bitcoin scam, not necessarily targeting dot users per se, adding anyway
polkadot.website as also born today, still empty tho

all.json

@@ -125,6 +125,7 @@
     "polkadot.center",
     "polkadot.com.se",
     "polkadot.company",
+    "polkadot.cyou",
     "polkadot.deals",
     "polkadot.express",
     "polkadot.gg",