Bump slevomat/coding-standard from 7.0.19 to 7.0.20
Bump slevomat/coding-standard from 7.0.19 to 7.0.20

Bumps [slevomat/coding-standard](https://github.com/slevomat/coding-standard) from 7.0.19 to 7.0.20.
- [Release notes](https://github.com/slevomat/coding-standard/releases)
- [Commits](https://github.com/slevomat/coding-standard/compare/7.0.19...7.0.20)

---
updated-dependencies:
- dependency-name: slevomat/coding-standard
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
Ocramius/CodeGenerationUtils