Update heck requirement from 0.4 to 0.5 in /services/autorust (#1624)

---
updated-dependencies:
- dependency-name: heck
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

services/autorust/codegen/Cargo.toml

@@ -13,7 +13,7 @@ quote = "1.0"
 proc-macro2 = { version = "1.0", default-features = false }
 serde_json = "1.0"
 serde_yaml = "0.9"
-heck = "0.4"
+heck = "0.5"
 regex = "1.7"
 indexmap = { version = "2.0", features = ["serde"] }
 path_abs = "0.5"