CI-windows

Workflow runs for CI-windows

• Fix #615 User-defined literal created from alternative and (#620)

  completed successfully:
  CI-windows#5:Commit863489apushedbyMatrixMike
  master

  Jan 28, 20267m 54s
  More actions for workflow run 5

• use emplace_back (#619)

  completed successfully:
  CI-windows#4:Commit10c9681pushedbyMatrixMike
  master

  Jan 19, 202655m 0s
  More actions for workflow run 4

• enabled and fixed modernize-return-braced-init-list clang-tidy warn…

  completed successfully:
  CI-windows#3:Commit10f5052pushedbyMatrixMike
  master

  Jan 4, 202612m 45s
  More actions for workflow run 3

• added MinGW workflow (#475)

  completed successfully:
  CI-windows#2:Commit10cfb94pushedbyMatrixMike
  master

  Dec 31, 202553m 57s
  More actions for workflow run 2

• avoid some unchecked pointer dereferences (#593)

  completed successfully:
  CI-windows#1:Commit72ecd54pushedbyMatrixMike
  master

  Dec 1, 20258m 43s
  More actions for workflow run 1