Update mainnet chain size and growth estimate (#3945)

Author: LukaszRozmej

src/Nethermind/Nethermind.Blockchain/KnownChainSizes.cs

@@ -50,7 +50,7 @@ public SizeInfo(
             {ChainId.Goerli,  new SizeInfo(8490.MB(), 15.MB(), new DateTime(2021, 12, 7))},
             {ChainId.Rinkeby,  new SizeInfo(34700.MB(), 20.MB(), new DateTime(2021, 12, 7))},
             {ChainId.Ropsten,  new SizeInfo(35900.MB(), 25.MB(), new DateTime(2021, 12, 7))},
-            {ChainId.Mainnet,  new SizeInfo(81700.MB(), 300.MB(), new DateTime(2021, 12, 11))},
+            {ChainId.Mainnet,  new SizeInfo(90000.MB(), 70.MB(), new DateTime(2022, 04, 7))},
             {ChainId.xDai,  new SizeInfo(18000.MB(), 48.MB(), new DateTime(2021, 12, 7))},
             {ChainId.EnergyWeb,  new SizeInfo(15300.MB(), 15.MB(), new DateTime(2021, 12, 7))},
             {ChainId.Volta,  new SizeInfo(17500.MB(), 10.MB(), new DateTime(2021, 11, 7))},