replace to v0.9.40 for the farming feature ONLY#3

Merged

b-yap merged 3 commits intopolkadot-v0.9.40-farmingfrom 219-update-runtimes-to-polkadot-v0940

May 23, 2023

+7,559-4,096

Commits on May 19, 2023

replace to v0.9.40, making sure
b-yap
committed

Commits on May 22, 2023