Bump ESPM 288 RAM
Bump ESPM 288 RAM

8G is higher than we usually go, but it's only
12 students so it's ok.

Fixes #2137

ryanlovett/datahub,berkeley-dsep-infra/datahub,berkeley-dsep-infra/datahub,ryanlovett/datahub,berkeley-dsep-infra/datahub,ryanlovett/datahub