build(deps): update cc requirement from =1.1.12 to =1.1.15 (#467)

Updates the requirements on [cc](https://github.com/rust-lang/cc-rs) to permit the latest version.
- [Release notes](https://github.com/rust-lang/cc-rs/releases)
- [Changelog](https://github.com/rust-lang/cc-rs/blob/main/CHANGELOG.md)
- [Commits](rust-lang/cc-rs@cc-v1.1.12...cc-v1.1.15)

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

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

Cargo.toml

@@ -18,7 +18,7 @@ async-h1 = "2.3.3"
 async-lock = "3.3.0"
 async-std = "1.6.5"
 aws-lc-rs = { version = "1", features = ["bindgen"] }
-cc = "=1.1.12"
+cc = "=1.1.15"
 dirs = "5.0.1"
 futures = "0.3.30"
 hex = "0.4.2"