Qt -> 6.3.0

also update build config:

- ubuntu: clang 13 -> 14
- mac: os 10.15 -> 11
- windows: os 2019 -> 2022
- update actions versions
- update pre-commit

6.2.3

update qt version in readme

6.2.0-clang

revert to 6.2.0 again due to msys2 git checkout issue (see #6)

6.2.0

Qt -> 6.2.0

6.1.3

remove bundled libss option (removed from qt 6.1.3 on linux)