build(deps): update heck requirement from 0.4 to 0.5 (ash-rs#880)

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

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

generator/Cargo.toml

@@ -10,7 +10,7 @@ publish = false
 # is generated (there is a CI check that validates that this
 # file is generated as currently checked in): 
 bindgen = "=0.69.2"
-heck = "0.4"
+heck = "0.5"
 itertools = "0.12"
 nom = "7.1"
 once_cell = "1.7"