Fix use-after-move

.. as repeated callback can be invoked numerous times as signals after
coming in for the pumpkin DLC.

BUG=b:265090131

(cherry picked from commit 855a341)

Change-Id: If4ff85308c43eaaf8d939cda891b70d8b67c8916
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4178463
Commit-Queue: Jae Hoon Kim <kimjae@chromium.org>
Reviewed-by: Akihiro Ota <akihiroota@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#1094273}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4181803
Cr-Commit-Position: refs/branch-heads/5481@{#473}
Cr-Branched-From: 130f3e4-refs/heads/main@{#1084008}

chrome/browser/ash/accessibility/pumpkin_installer.cc

@@ -91,7 +91,7 @@ void PumpkinInstaller::OnInstalled(
 }
 
 void PumpkinInstaller::OnProgress(double progress) {
-  std::move(on_progress_).Run(progress);
+  on_progress_.Run(progress);
 }
 
 void PumpkinInstaller::OnError(const std::string& error) {