composer(deps): bump composer/class-map-generator from 1.6.2 to 1.7.0

Bumps [composer/class-map-generator](https://github.com/composer/class-map-generator) from 1.6.2 to 1.7.0.
- [Release notes](https://github.com/composer/class-map-generator/releases)
- [Commits](composer/class-map-generator@1.6.2...1.7.0)

---
updated-dependencies:
- dependency-name: composer/class-map-generator
  dependency-version: 1.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]