fastapi: fix wrapping of middlewares (#3012)

* fastapi: fix wrapping of middlewares

* fix import, super

* add test

* changelog

* lint

* lint

* fix

* ci

* fix wip

* fix

* fix

* lint

* lint

* Exit?

* Update test_fastapi_instrumentation.py

Co-authored-by: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>

* remove break

* fix

* remove dunders

* add test

* lint

* add endpoint to class

* fmt

* pr feedback

* move type ignores

* fix sphinx?

* Update CHANGELOG.md

* update fastapi versions

* fix?

* generate

* stop passing on user-supplied error handler

This prevents potential side effects, such as logging, to be executed
more than once per request handler exception.

* fix ci

Signed-off-by: emdneto <9735060+emdneto@users.noreply.github.com>

* fix ruff

Signed-off-by: emdneto <9735060+emdneto@users.noreply.github.com>

* remove unused funcs

Co-authored-by: Emídio Neto <9735060+emdneto@users.noreply.github.com>

* fix lint,ruff

Signed-off-by: emdneto <9735060+emdneto@users.noreply.github.com>

* fix changelog

Signed-off-by: emdneto <9735060+emdneto@users.noreply.github.com>

* add changelog note

Signed-off-by: emdneto <9735060+emdneto@users.noreply.github.com>

* fix conflicts with main

Signed-off-by: emdneto <9735060+emdneto@users.noreply.github.com>

---------

Signed-off-by: emdneto <9735060+emdneto@users.noreply.github.com>
Co-authored-by: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>
Co-authored-by: Alexander Dorn <ad@not.one>
Co-authored-by: Emídio Neto <9735060+emdneto@users.noreply.github.com>

docs/nitpick-exceptions.ini

@@ -44,6 +44,7 @@ py-class=
     psycopg.Connection
     psycopg.AsyncConnection
     ObjectProxy
+    fastapi.applications.FastAPI
 
 any=
     ; API