Bump serde_json from 1.0.89 to 1.0.91 in /src-tauri (#124)

Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.89 to 1.0.91.
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](https://github.com/serde-rs/json/compare/v1.0.89...v1.0.91)

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

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src-tauri/Cargo.toml

@@ -15,7 +15,7 @@ rust-version = "1.61"
 tauri-build = { version = "1.2.1", features = [] }
 
 [dependencies]
-serde_json = "1.0.89"
+serde_json = "1.0.91"
 serde = { version = "1.0.152", features = ["derive"] }
 tauri = { version = "1.2.2", features = ["api-all", "devtools", "updater"] }