Use the right ureq version for BDK

Author: afilini

Cargo.toml

@@ -19,7 +19,7 @@ path = "src/lib.rs"
 serde = { version = "1.0", features = ["derive"] }
 bitcoin = { version = "0.28.1", features = ["use-serde"] }
 log = "^0.4"
-ureq = { version = "2.5", features = ["json"], optional = true }
+ureq = { version = "~2.2.0", features = ["json"], optional = true }
 reqwest = { version = "0.11", optional = true, default-features = false, features = ["json"] }
 
 [dev-dependencies]