Fix use-after-move in //content/browser/webauth/authenticator_common.cc

Fix use-after-move (potential) bugs found by the
"bugprone-use-after-move" clang-tidy check.

Bug: 1122844
Change-Id: Icb54c2f9e02ca7efc89d5674d22daed4ac1f971a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2383022Reviewed-by: Adam Langley <agl@chromium.org>
Commit-Queue: Maksim Ivanov <emaxx@chromium.org>
Cr-Commit-Position: refs/heads/master@{#803100}

content/browser/webauth/authenticator_common.cc

@@ -1064,7 +1064,7 @@ void AuthenticatorCommon::GetAssertion(
       NOTREACHED();
 
       InvokeCallbackAndCleanup(
-          std::move(callback),
+          std::move(get_assertion_response_callback_),
           blink::mojom::AuthenticatorStatus::UNKNOWN_ERROR);
       return;
     }