deps(ai-assistant)(deps): Bump fsspec in /ai-assistant (#240)

Bumps [fsspec](https://github.com/fsspec/filesystem_spec) from 2025.12.0 to 2026.1.0.
- [Commits](fsspec/filesystem_spec@2025.12.0...2026.1.0)

---
updated-dependencies:
- dependency-name: fsspec
  dependency-version: 2026.1.0
  dependency-type: indirect
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

ai-assistant/requirements.txt

@@ -41,7 +41,7 @@ fastmcp==2.14.4
 fastuuid==0.14.0
 filelock==3.20.3
 frozenlist==1.8.0
-fsspec==2025.12.0
+fsspec==2026.1.0
 genai-prices==0.0.52
 google-auth[requests]==2.48.0
 google-genai==1.61.0