Bump monolog/monolog from 2.9.2 to 3.5.0

Bumps [monolog/monolog](https://github.com/Seldaek/monolog) from 2.9.2 to 3.5.0.
- [Release notes](https://github.com/Seldaek/monolog/releases)
- [Changelog](https://github.com/Seldaek/monolog/blob/main/CHANGELOG.md)
- [Upgrade guide](https://github.com/Seldaek/monolog/blob/main/UPGRADE.md)
- [Commits](Seldaek/monolog@2.9.2...3.5.0)

---
updated-dependencies:
- dependency-name: monolog/monolog
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

composer.json

@@ -26,7 +26,7 @@
         "ext-json": "*",
         "ext-pdo": "*",
         "clue/ndjson-react": "^v1.3.0",
-        "monolog/monolog": "^2.8",
+        "monolog/monolog": "^3.5",
         "php-di/php-di": "^7.0",
         "predis/predis": "^2.2",
         "react/mysql": "^0.6.0",