Bump cakephp/debug_kit from 5.0.5 to 5.1.2

Bumps [cakephp/debug_kit](https://github.com/cakephp/debug_kit) from 5.0.5 to 5.1.2.
- [Release notes](https://github.com/cakephp/debug_kit/releases)
- [Commits](cakephp/debug_kit@5.0.5...5.1.2)

---
updated-dependencies:
- dependency-name: cakephp/debug_kit
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>