Ignore SQLAlchemy RemovedIn20Warning from FastAPI

We have SQLAlchemy pinned anyway; we are not yet concerned about
forward-compatibility with 2.0, especially in dependencies.

pyproject.toml

@@ -97,6 +97,9 @@ filterwarnings = [
     "error",
     # TODO: needed by asyncio in Python 3.9.7 https://bugs.python.org/issue45097, try to remove on 3.9.8
     'ignore:The loop argument is deprecated since Python 3\.8, and scheduled for removal in Python 3\.10:DeprecationWarning:asyncio',
+    # We have SQLAlchemy pinned anyway; we are not yet concerned about
+    # forward-compatibility with 2.0, especially in dependencies.
+    'ignore::sqlalchemy.exc.RemovedIn20Warning:fastapi',
     'ignore:starlette.middleware.wsgi is deprecated and will be removed in a future release\..*:DeprecationWarning:starlette',
     # TODO: remove after upgrading HTTPX to a version newer than 0.23.0
     # Including PR: https://github.com/encode/httpx/pull/2309