Bump serde_json from 1.0.138 to 1.0.139 in /client

Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.138 to 1.0.139.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](serde-rs/json@v1.0.138...v1.0.139)

---
updated-dependencies:
- dependency-name: serde_json
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

client/Cargo.lock

@@ -18,7 +18,7 @@ debug = true
 macroquad = "0.4.13"
 hex2d = "1.1.0"
 itertools = "0.14.0"
-serde_json = "1.0.138"
+serde_json = "1.0.139"
 server = { path = "../server", version = "0.1.0" }
 wasm-bindgen = "0.2.95"
 wasm-bindgen-futures = "0.4.50"