build(deps): bump the rust group with 3 updates

Bumps the rust group with 3 updates: [handlebars](https://github.com/sunng87/handlebars-rust), [log](https://github.com/rust-lang/log) and [serde_json](https://github.com/serde-rs/json).


Updates `handlebars` from 6.2.0 to 6.3.0
- [Release notes](https://github.com/sunng87/handlebars-rust/releases)
- [Changelog](https://github.com/sunng87/handlebars-rust/blob/master/CHANGELOG.md)
- [Commits](sunng87/handlebars-rust@v6.2.0...v6.3.0)

Updates `log` from 0.4.22 to 0.4.25
- [Release notes](https://github.com/rust-lang/log/releases)
- [Changelog](https://github.com/rust-lang/log/blob/master/CHANGELOG.md)
- [Commits](rust-lang/log@0.4.22...0.4.25)

Updates `serde_json` from 1.0.134 to 1.0.138
- [Release notes](https://github.com/serde-rs/json/releases)
- [Commits](serde-rs/json@v1.0.134...v1.0.138)

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

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