Revert to cosmwasm 1.2.x for compat with sdk

Author: maurolacy

Cargo.toml

@@ -25,8 +25,8 @@ mesh-simple-price-feed    = { path = "./contracts/consumer/simple-price-feed" }
 mesh-virtual-staking    = { path = "./contracts/consumer/virtual-staking" }
 
 sylvia           = "0.8.1"
-cosmwasm-schema  = "1.3.3"
-cosmwasm-std     = { version = "1.3.3", features = ["ibc3", "cosmwasm_1_3"] }
+cosmwasm-schema  = "1.2.7"
+cosmwasm-std     = { version = "1.2.7", features = ["ibc3", "cosmwasm_1_2"] }
 cw-storage-plus  = "1.1.0"
 cw-utils         = "1.0.1"
 cw2              = "1.0.1"