Update Rust crate approx to 0.5.0 (#21)

renovate[bot] · renovate-bot · web-flow · commit 192037fef6b8 · 2021-07-31T11:22:51.000+02:00
Co-authored-by: Renovate Bot &lt;bot@renovateapp.com&gt;
diff --git a/Cargo.toml b/Cargo.toml
@@ -16,7 +16,7 @@ minidom = "0.12.0"
 thiserror = "1.0"
 
 [dev-dependencies]
-approx = "0.4.0"
+approx = "0.5.0"
 criterion = "0.3.5"
 
 [[bench]]
