Bump serde_json from 1.0.63 to 1.0.64 (#55)

Bumps [serde_json](https://github.com/serde-rs/json) from 1.0.63 to 1.0.64. - [Release notes](https://github.com/serde-rs/json/releases) - [Commits](serde-rs/json@v1.0.63...v1.0.64) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]