Missing buff for carrying rich vespene gas

[SoupCatcher]

When a worker carries a resource it gets a buff corresponding to what it's carrying:

https://github.com/Blizzard/s2client-proto/blob/5b42959a40a45cca290ce427b5522a35c8a59178/stableid.json#L24352-L24371

However, there is no corresponding buff for rich vespene gas, and workers carrying rich gas don't have any buffs.