Update SDK for Sway's change to use IR by default.

[otrho]

Sway is switching to use IR by default here: FuelLabs/sway#1130

Contract calls are slightly different compared to current Sway -- user args are always wrapped in a struct, even if there is only one. This is a bit more consistent and disregards the need for special casing.

Also, values are returned from a contract call via RET or RETD based now on the value type, not size. unit, bool, byte and u64 are 'copy' types returned via RET, otherwise RETD is used.

[digorithm]

Note: this is momentarily blocked by FuelLabs/sway#1146.

[mohammadfawaz]

forc v0.10.0 is now available.

[otrho]

I think the design we want now is to actually keep the special casing for small struct args but use the newer 'by-typeconventions forRETvsRETD` as mentioned in the description.