Bump supported fastapi versions (#1110)

* Bump supported fastapi version to <=0.97, change all fastapi tests from starlette client to httpx.AsyncClient

* Add lifecycle manager to fastapi tests

* Fix coverage

* Add python 3.11 to test suite, bump version

benchmarks/test_benchmark_init.py

@@ -21,7 +21,7 @@ async def test_initializing_models(aio_benchmark, num_models: int):
         ]
         assert len(authors) == num_models
 
-    initialize_models(num_models)
+    await initialize_models(num_models)
 
 
 @pytest.mark.parametrize("num_models", [10, 20, 40])
@@ -30,7 +30,7 @@ async def test_initializing_models_with_related_models(aio_benchmark, num_models
     async def initialize_models_with_related_models(
         author: Author, publisher: Publisher, num_models: int
     ):
-        books = [
+        _ = [
             Book(
                 author=author,
                 publisher=publisher,
@@ -43,6 +43,6 @@ async def test_initializing_models_with_related_models(aio_benchmark, num_models
     author = await Author(name="Author", score=10).save()
     publisher = await Publisher(name="Publisher", prestige=random.randint(0, 10)).save()
 
-    ids = initialize_models_with_related_models(
+    _ = initialize_models_with_related_models(
         author=author, publisher=publisher, num_models=num_models
     )

benchmarks/test_benchmark_update.py

@@ -18,7 +18,7 @@ async def test_updating_models_individually(
     @aio_benchmark
     async def update(authors: List[Author]):
         for author in authors:
-            a = await author.update(
+            _ = await author.update(
                 name="".join(random.sample(string.ascii_letters, 5))
             )