chore(deps): bump @ai-sdk/provider-utils from 3.0.14 to 3.0.15

Bumps [@ai-sdk/provider-utils](https://github.com/vercel/ai) from 3.0.14 to 3.0.15.
- [Release notes](https://github.com/vercel/ai/releases)
- [Changelog](https://github.com/vercel/ai/blob/main/CHANGELOG.md)
- [Commits](https://github.com/vercel/ai/compare/@ai-sdk/provider-utils@3.0.14...@ai-sdk/provider-utils@3.0.15)

---
updated-dependencies:
- dependency-name: "@ai-sdk/provider-utils"
  dependency-version: 3.0.15
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

package-lock.json

@@ -147,7 +147,7 @@
   "dependencies": {
     "@ai-sdk/openai-compatible": "^1.0.20",
     "@ai-sdk/provider": "^2.0.0",
-    "@ai-sdk/provider-utils": "^3.0.14",
+    "@ai-sdk/provider-utils": "^3.0.15",
     "ai": "^5.0.53",
     "ai-sdk-mistral-fim": "^0.0.1",
     "ai-sdk-ollama": "^0.5.1",