Update webmozart/assert requirement in the production-dependencies group

Updates the requirements on [webmozart/assert](https://github.com/webmozarts/assert) to permit the latest version.

Updates `webmozart/assert` to 2.0.0
- [Release notes](https://github.com/webmozarts/assert/releases)
- [Changelog](https://github.com/webmozarts/assert/blob/master/CHANGELOG.md)
- [Commits](webmozarts/assert@1.12.0...2.0.0)

---
updated-dependencies:
- dependency-name: webmozart/assert
  dependency-version: 2.0.0
  dependency-type: direct:production
  dependency-group: production-dependencies
...

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

Author: dependabot[bot]

composer.json

@@ -20,7 +20,7 @@
         "ext-spl": "*",
 
         "guzzlehttp/psr7": "~2.8",
-        "webmozart/assert": "~1.12"
+        "webmozart/assert": "~2.0"
     },
     "require-dev": {
         "ext-intl": "*",