fix(deps): update rust crate approx to 0.5.1

Cargo.toml

@@ -66,6 +66,6 @@ maintenance = { status = "actively-developed" }
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [dependencies]
 ndarray = { version = "0.15.6", features = ["serde", "approx"] }
-approx = "0.4.0"
+approx = "0.5.1"
 thiserror = "1.0.34"
 serde = { version = "1.0.144", features = ["derive"] }