[Repo Assist] Update Fantomas 7.0.3 → 7.0.5 (patch update) (#1093)

* Update Fantomas from 7.0.3 to 7.0.5 (patch update, no formatting changes)

Fantomas 7.0.5 is a patch release over 7.0.3. After updating:
- dotnet tool restore succeeds
- dotnet fantomas ... --check reports no files needing reformatting

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* ci: trigger checks

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: github-actions[bot]

.config/dotnet-tools.json

@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "fantomas": {
-      "version": "7.0.3",
+      "version": "7.0.5",
       "commands": [
         "fantomas"
       ],