chore: bump uniffi-rs to 0.28.0

Author: thunderbiscuit

Cargo.lock

@@ -12,7 +12,7 @@ default = ["uniffi/cli"]
 
 [dependencies]
 bitcoin = { version = "0.31.2" }
-uniffi = { version = "=0.27.1" }
+uniffi = { version = "=0.28.0" }
 
 [build-dependencies]
-uniffi = { version = "=0.27.1", features = ["build"] }
+uniffi = { version = "=0.28.0", features = ["build"] }