build(deps): bump zircote/swagger-php in the composer group

Bumps the composer group with 1 update: [zircote/swagger-php](https://github.com/zircote/swagger-php).


Updates `zircote/swagger-php` from 6.0.5 to 6.0.6
- [Release notes](https://github.com/zircote/swagger-php/releases)
- [Commits](zircote/swagger-php@6.0.5...6.0.6)

---
updated-dependencies:
- dependency-name: zircote/swagger-php
  dependency-version: 6.0.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: composer
...

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Author: dependabot[bot]