Bump convert_case from 0.7.1 to 0.8.0

Bumps [convert_case](https://github.com/rutrum/convert-case) from 0.7.1 to 0.8.0.
- [Commits](https://github.com/rutrum/convert-case/commits)

---
updated-dependencies:
- dependency-name: convert_case
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.lock

@@ -13,5 +13,5 @@ proc-macro = true
 syn = { version = "1.0", features = ["full"] }
 quote = "1.0"
 proc-macro2 = "1.0.93"
-convert_case = "0.7.1"
+convert_case = "0.8.0"
 graphql_client_codegen = "0.14.0"