Bump jsonata and @node-red/util

Bumps [jsonata](https://github.com/jsonata-js/jsonata) and [@node-red/util](https://github.com/node-red/node-red). These dependencies needed to be updated together.

Updates `jsonata` from 1.8.6 to 1.8.7
- [Release notes](https://github.com/jsonata-js/jsonata/releases)
- [Changelog](https://github.com/jsonata-js/jsonata/blob/v1.8.7/CHANGELOG.md)
- [Commits](jsonata-js/jsonata@v1.8.6...v1.8.7)

Updates `@node-red/util` from 3.1.5 to 3.1.7
- [Release notes](https://github.com/node-red/node-red/releases)
- [Changelog](https://github.com/node-red/node-red/blob/master/CHANGELOG.md)
- [Commits](node-red/node-red@3.1.5...3.1.7)

---
updated-dependencies:
- dependency-name: jsonata
  dependency-type: indirect
- dependency-name: "@node-red/util"
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>