Merge #7058: fix: add mutable to make the captured work non-const, allowing it to be properly moved

7371f51 fix: add `mutable` to make the captured `work` non-const, allowing it to be properly moved (UdjinM6)

Pull request description:

  ## Issue being fixed or feature implemented
  clang-tidy complains on develop https://github.com/dashpay/dash/actions/runs/20066954644/job/57558275807

  #7004 follow-up

  ## What was done?
  Lambda captures are const by default, so `std::move(work)` inside the lambda had no effect. Add `mutable` to make the captured `work` non-const, allowing it to be properly moved.

  ## How Has This Been Tested?
  https://github.com/UdjinM6/dash/actions/runs/20079838716/job/57605752892

  ## Breaking Changes
  n/a

  ## Checklist:
  - [ ] I have performed a self-review of my own code
  - [ ] I have commented my code, particularly in hard-to-understand areas
  - [ ] I have added or updated relevant unit/integration/functional/e2e tests
  - [ ] I have made corresponding changes to the documentation
  - [ ] I have assigned this pull request to a milestone _(for repository code-owners and collaborators only)_

ACKs for top commit:
  PastaPastaPasta:
    utACK 7371f51
  kwvg:
    utACK 7371f51

Tree-SHA512: 56d3a6045e86ebbdce8cac328282c002f65a1c482a02a8cbdf87b4ac29e4bce2de3160eaca78171619771efa19b8343d4dc336ecad38b983fa02cba2793ddecb

Author: PastaPastaPasta

src/llmq/signing_shares.cpp

@@ -1668,7 +1668,7 @@ void CSigSharesManager::DispatchPendingSigns()
     for (auto& work : signs) {
         if (workInterrupt) break;
 
-        workerPool.push([this, work = std::move(work)](int) {
+        workerPool.push([this, work = std::move(work)](int) mutable {
             SignAndProcessSingleShare(std::move(work));
         });
     }