Bump composer/composer from 2.7.4 to 2.7.7 (acquia#593)

Bumps [composer/composer](https://github.com/composer/composer) from 2.7.4 to 2.7.7.
- [Release notes](https://github.com/composer/composer/releases)
- [Changelog](https://github.com/composer/composer/blob/main/CHANGELOG.md)
- [Commits](composer/composer@2.7.4...2.7.7)

---
updated-dependencies:
- dependency-name: composer/composer
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>