build(deps): update php-di/php-di requirement

Updates the requirements on [php-di/php-di](https://github.com/PHP-DI/PHP-DI) to permit the latest version.

Updates `php-di/php-di` to 7.0.8
- [Release notes](https://github.com/PHP-DI/PHP-DI/releases)
- [Commits](PHP-DI/PHP-DI@7.0.7...7.0.8)

---
updated-dependencies:
- dependency-name: php-di/php-di
  dependency-type: direct:production
  dependency-group: composer-production-dependencies
...

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

src/quote/composer.json

@@ -14,7 +14,7 @@
         "open-telemetry/detector-container": "1.0.0",
         "open-telemetry/opentelemetry-logger-monolog": "1.0.0",
         "guzzlehttp/guzzle": "7.9.2",
-        "php-di/php-di": "7.0.7",
+        "php-di/php-di": "7.0.8",
         "php-di/slim-bridge": "3.4.1",
         "php-http/guzzle7-adapter": "1.1.0",
         "react/http": "v1.11.0",