build(deps-dev): bump istanbul-reports from 3.1.7 to 3.2.0

Bumps [istanbul-reports](https://github.com/istanbuljs/istanbuljs/tree/HEAD/packages/istanbul-reports) from 3.1.7 to 3.2.0.
- [Release notes](https://github.com/istanbuljs/istanbuljs/releases)
- [Changelog](https://github.com/istanbuljs/istanbuljs/blob/main/packages/istanbul-reports/CHANGELOG.md)
- [Commits](https://github.com/istanbuljs/istanbuljs/commits/istanbul-reports-v3.2.0/packages/istanbul-reports)

---
updated-dependencies:
- dependency-name: istanbul-reports
  dependency-version: 3.2.0
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]