[wormhole-attester] Bump client v to 4.0.0 (#640)

wormhole_attester/Cargo.lock

@@ -2699,7 +2699,7 @@ dependencies = [
 
 [[package]]
 name = "pyth-wormhole-attester-client"
-version = "3.0.0"
+version = "4.0.0"
 dependencies = [
  "borsh",
  "clap 3.1.18",

wormhole_attester/client/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "pyth-wormhole-attester-client"
-version = "3.0.0"
+version = "4.0.0"
 edition = "2018"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html