📝 Update release notes

[skip ci]

Author: github-actions[bot]

docs/release-notes.md

@@ -10,6 +10,7 @@
 
 ### Internal
 
+* 📌 Pin FastAPI in tests to 0.125.0 while dropping support for Python 3.8. PR [#1689](https://github.com/fastapi/sqlmodel/pull/1689) by [@tiangolo](https://github.com/tiangolo).
 * 👷 Configure coverage, error on main tests, don't wait for Smokeshow. PR [#1683](https://github.com/fastapi/sqlmodel/pull/1683) by [@YuriiMotov](https://github.com/YuriiMotov).
 * 👷 Run Smokeshow always, even on test failures. PR [#1682](https://github.com/fastapi/sqlmodel/pull/1682) by [@YuriiMotov](https://github.com/YuriiMotov).
 * ⬆ Bump ruff from 0.14.6 to 0.14.8. PR [#1667](https://github.com/fastapi/sqlmodel/pull/1667) by [@dependabot[bot]](https://github.com/apps/dependabot).