Fix remaining typos (#7395)

Author: DimitriPapadopoulos

src/requests/adapters.py

@@ -401,7 +401,7 @@ def build_connection_pool_key_attributes(self, request, verify, cert=None):
         alter the other keys to ensure the desired behaviour.
 
         :param request:
-            The PreparedReqest being sent over the connection.
+            The PreparedRequest being sent over the connection.
         :type request:
             :class:`~requests.models.PreparedRequest`
         :param verify:

tests/test_requests.py

@@ -586,7 +586,7 @@ def test_basicauth_encodes_byte_strings(self):
             ("http://doesnotexist.google.com", ConnectionError),
             # Connecting to an invalid port should raise a ConnectionError
             ("http://localhost:1", ConnectionError),
-            # Inputing a URL that cannot be parsed should raise an InvalidURL error
+            # Inputting a URL that cannot be parsed should raise an InvalidURL error
             ("http://fe80::5054:ff:fe5a:fc0", InvalidURL),
         ),
     )