bump serde version to 1.0.228 in Cargo.toml and Cargo.lock

Author: psytraxx

Cargo.lock

@@ -34,7 +34,7 @@ rust-mqtt = { version = "0.3.0", default-features = false, features = [] }
 embedded-text = "0.7.2"
 embedded-graphics = { version = "0.8.1", features = [] }
 embedded-hal = { version = "1.0.0", features = [] }
-serde = { version = "1.0.227", default-features = false, features = ["derive"] }
+serde = { version = "1.0.228", default-features = false, features = ["derive"] }
 serde_json = { version = "1.0.145", default-features = false, features = [
     "alloc",
 ] }