עדכון pydantic-ai v2.17.0

תקציר מקורי באנגלית<h2>What's Changed</h2> <h3>🚀 Features</h3> <ul> <li>Make <code>RequestUsage</code> and <code>RunUsage</code> support arbitrary fields for upcoming genai-prices by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/alexmojaki/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/alexmojaki">@alexmojaki</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="4959400399" data-permission-text="Title is private" data-url="https://github.com/pydantic/pydantic-ai/issues/6683" data-hovercard-type="pull_request" data-hovercard-url="/pydantic/pydantic-ai/pull/6683/hovercard" href="https://github.com/pydantic/pydantic-ai/pull/6683">#6683</a></li> <li>Cache per-message