minor #228 [Platform] Fix coding style (xavierleune)

This PR was merged into the main branch.

Discussion
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[Platform] Fix coding style

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| Docs?         | no <!-- required for new features -->
| Issues        | N/A <!-- prefix each issue number with "Fix #", no need to create an issue if none exist, explain below instead -->
| License       | MIT

php-cs-fixer 3.85 has been released with a bunch of new rules, this fixes the 2 new violations

Commits
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1956f9f [Platform] Fix coding style

Author: OskarStark

src/platform/src/Bridge/Mistral/Llm/ResultConverter.php

@@ -152,7 +152,7 @@ private function isToolCallsStreamFinished(array $data): bool
 
     /**
      * @param array{
-     *     index: integer,
+     *     index: int,
      *     message: array{
      *         role: 'assistant',
      *         content: ?string,

src/platform/src/Bridge/OpenAI/GPT/ResultConverter.php

@@ -149,7 +149,7 @@ private function isToolCallsStreamFinished(array $data): bool
 
     /**
      * @param array{
-     *     index: integer,
+     *     index: int,
      *     message: array{
      *         role: 'assistant',
      *         content: ?string,