fix(deps): update rust crate once_cell to 1.21.2

Author: renovate[bot]

Cargo.lock

@@ -14,7 +14,7 @@ bevy_matchbox = "0.10.0"
 bincode = "1.3.3"
 clap = { version = "4.5.23", features = ["derive"] }
 if_chain = "1.0.2"
-once_cell = "1.20.2"
+once_cell = "1.21.2"
 rand = "0.8.5"
 serde = { version = "1.0.217", features = ["derive"] }