Update Rust crate convert_case to 0.8.0 (#3857)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [convert_case](https://redirect.github.com/rutrum/convert-case) | dependencies | minor | `0.7.0` -> `0.8.0` |

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packages/next-swc/crates/core/Cargo.toml

@@ -9,7 +9,7 @@ plugin = ["turbopack-binding/__swc_core_binding_napi_plugin"]
 
 [dependencies]
 chrono = "0.4.38"
-convert_case = "0.7.0"
+convert_case = "0.8.0"
 easy-error = "1.0.0"
 either = "1.11.0"
 fxhash = "0.2.1"