Bump serde_json in /integration-test in the rust-dependencies group (#461)

Bumps the rust-dependencies group in /integration-test with 1 update: [serde_json](https://github.com/serde-rs/json).


Updates `serde_json` from 1.0.148 to 1.0.149
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](serde-rs/json@v1.0.148...v1.0.149)

---
updated-dependencies:
- dependency-name: serde_json
  dependency-version: 1.0.149
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: rust-dependencies
...

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Author: dependabot[bot]