Fix new lint errors

src/pip/_internal/network/auth.py

@@ -514,7 +514,9 @@ class MultiDomainBasicAuth(AuthBase):
 
         # Consume content and release the original connection to allow our new
         #   request to reuse the same one.
-        resp.content
+        # The result of the assignment isn't used, it's just needed to consume
+        # the content.
+        _ = resp.content
         resp.raw.release_conn()
 
         # Add our new username and password to the request

tests/lib/__init__.py

@@ -684,7 +684,9 @@ class PipTestEnvironment(TestFileEnvironment):
         # Pass expect_stderr=True to allow any stderr.  We do this because
         # we do our checking of stderr further on in check_stderr().
         kw["expect_stderr"] = True
-        result = super().run(cwd=cwd, *args, **kw)
+        # Ignore linter check
+        # B026 Star-arg unpacking after a keyword argument is strongly discouraged
+        result = super().run(cwd=cwd, *args, **kw)  # noqa
 
         if expect_error and not allow_error:
             if result.returncode == 0: