Bump composer/composer from 2.7.4 to 2.7.6 (#574)

Bumps [composer/composer](https://github.com/composer/composer) from 2.7.4 to 2.7.6.
- [Release notes](https://github.com/composer/composer/releases)
- [Changelog](https://github.com/composer/composer/blob/main/CHANGELOG.md)
- [Commits](composer/composer@2.7.4...2.7.6)

---
updated-dependencies:
- dependency-name: composer/composer
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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