ci: Fix lint errors due to mypy with python 3.12 (#1890)

* ci: Fix lint errors.

Now that we're using python 3.12 for the `lint` github action, we need
to fix the errors that it is reporting.

* fix: Pin `aiohttp` to fix lint error

Also reorganize the transitive dependencies in pyproject.toml

* fix: downgrade aiohttp because of python 3.8 support

* fix: Add `type: ignore` back, until we drop support for python 3.8

* Pin at 3.10.11 instead of 3.10.8

* Remove ignore again

---------

Co-authored-by: Grzegorz Banasiak <[email protected]>

esrally/client/asynchronous.py

@@ -77,7 +77,7 @@ async def send(self, conn: "Connection") -> "ClientResponse":
         self.response = self.response_class(
             self.method,
             self.original_url,
-            writer=self._writer,  # type: ignore[arg-type]  # TODO remove this ignore when introducing type hints
+            writer=self._writer,
             continue100=self._continue,
             timer=self._timer,
             request_info=self.request_info,

pyproject.toml

@@ -41,13 +41,12 @@ classifiers = [
 ################################################################################################
 dependencies = [
     # License: Apache 2.0
-    # transitive dependencies:
-    #   urllib3: MIT
-    #   aiohttp: Apache 2.0
-
     "elasticsearch[async]==8.6.1",
     "elastic-transport==8.4.1",
+    # License: MIT
     "urllib3==1.26.19",
+    # License: Apache 2.0
+    "aiohttp==3.10.11",
     "docker==6.0.0",
     # avoid specific requests version to fix bug in docker-py
     "requests<2.32.0",