Update Rust crate camino to 1.1.12 (#8967)

Author: oxide-renovate[bot]

Cargo.lock

@@ -378,7 +378,7 @@ bootstrap-agent-client = { path = "clients/bootstrap-agent-client" }
 buf-list = { version = "1.0.3", features = ["tokio1"] }
 byteorder = "1.5.0"
 bytes = "1.10.1"
-camino = { version = "1.1.11", features = ["serde1"] }
+camino = { version = "1.1.12", features = ["serde1"] }
 camino-tempfile = "1.4.1"
 camino-tempfile-ext = { version = "0.3.2", features = ["assert-color"] }
 cancel-safe-futures = "0.1.5"