fix(deps): update rust crate lru to 0.7 [security]

Author: renovate[bot]

Cargo.toml

@@ -33,7 +33,7 @@ hex = { version = "0.4", features = ["serde"] }
 hostname = "0.3"
 image = { version = "0.23", default-features = false, features = ["png"] }
 lazy_static = "1.4"
-lru = "0.6"
+lru = "0.7"
 num_cpus = "1.13"
 palette = { version = "0.5", features = ["serializing"] }
 parse-display = "0.5"