FirstRun: drop qt5-qttools-static from Alpine deps

It has been included in qt5-qttools-dev
2 jobs for alpine-qt5-qttools-static in 2 minutes and 27 seconds (queued for 36 seconds)
Status Job ID Name Coverage
  Test
passed #92329
smoke-test

00:01:53

passed #92328
unit-test

00:00:33