composer(deps): bump ergebnis/classy from 1.1.1 to 1.2.0

Bumps [ergebnis/classy](https://github.com/ergebnis/classy) from 1.1.1 to 1.2.0.
- [Release notes](https://github.com/ergebnis/classy/releases)
- [Changelog](https://github.com/ergebnis/classy/blob/main/CHANGELOG.md)
- [Commits](ergebnis/classy@1.1.1...1.2.0)

---
updated-dependencies:
- dependency-name: ergebnis/classy
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

composer.json

@@ -18,7 +18,7 @@
   ],
   "require": {
     "php": "^7.2 || ^8.0",
-    "ergebnis/classy": "^1.1.1",
+    "ergebnis/classy": "^1.2.0",
     "fakerphp/faker": "^1.14.1"
   },
   "require-dev": {