minor #622 [Examples] Add minimum-stability dev to composer.json (OskarStark)

This PR was merged into the main branch.

Discussion
----------

[Examples] Add `minimum-stability` `dev` to `composer.json`

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| Docs?         | no
| Issues        | --
| License       | MIT

Adds minimum-stability configuration to allow dev dependencies and development versions of packages in examples.

Needed for #277, thanks `@xabbuh`

Commits
-------

f352744 [Examples] Add minimum-stability dev to composer.json

Author: OskarStark

examples/composer.json

@@ -3,6 +3,7 @@
     "description": "Example scripts about using Symfony AI",
     "license": "MIT",
     "type": "project",
+    "minimum-stability": "dev",
     "require": {
         "php": ">=8.2",
         "ext-pdo": "*",