fix: remove testutils from workspace soroban-sdk defaults to fix WASM build conflicts

Author: Xhristin3

contract/Cargo.toml

@@ -16,9 +16,7 @@ repository = "https://github.com/Gatheraa/Gatherraa"
 license = "MIT"
 
 [workspace.dependencies]
-soroban-sdk = { version = "23.5.2", features = ["testutils"] }
-serde_json = "1.0"
-rand = "0.8"
+soroban-sdk = { version = "23.5.2" }
 gathera-common = { path = "./common" }
 ticket_contract = { path = "./ticket_contract" }
 escrow_contract = { path = "./escrow_contract" }

contract/contracts/Cargo.toml

@@ -12,8 +12,6 @@ gathera-common = { workspace = true }
 ticket_contract = { workspace = true }
 escrow_contract = { workspace = true }
 multisig_wallet_contract = { workspace = true }
-serde_json = { workspace = true }
-rand = { workspace = true }
 
 [dev-dependencies]
 soroban-sdk = { workspace = true, features = ["testutils"] }