עדכון pydantic-ai v2.15.0

תקציר מקורי באנגלית<h2>What's Changed</h2> <h3>🚀 Features</h3> <ul> <li>feat(openai): support explicit prompt caching for <code>gpt-5.6</code> by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/Wh1isper/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/Wh1isper">@Wh1isper</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="4854167147" data-permission-text="Title is private" data-url="https://github.com/pydantic/pydantic-ai/issues/6423" data-hovercard-type="pull_request" data-hovercard-url="/pydantic/pydantic-ai/pull/6423/hovercard" href="https://github.com/pydantic/pydantic-ai/pull/6423">#6423</a></li> <li>Inline text-like files in <code>MistralModel</code> prompts