build(deps): bump simplesamlphp/composer-module-installer (simplesamlphp#2548)

Bumps the production-dependencies group with 1 update: [simplesamlphp/composer-module-installer](https://github.com/simplesamlphp/composer-module-installer).


Updates `simplesamlphp/composer-module-installer` from 1.5.0 to 1.5.1
- [Release notes](https://github.com/simplesamlphp/composer-module-installer/releases)
- [Commits](simplesamlphp/composer-module-installer@v1.5.0...v1.5.1)

---
updated-dependencies:
- dependency-name: simplesamlphp/composer-module-installer
  dependency-version: 1.5.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: production-dependencies
...

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