Msys2-next after 221105
- Upstream snapshot to be updated (they've released 221216) - Drop Qt6 from "win64" environment. If one can run Qt6 (requires win10), they can also use the preferred "win64-10" (requires win10) environment
Depends on #46345
Snapshot 221223 uploaded to files.freeciv.org, as it has already passed most tests.
- Upstream snapshot to be updated (they've released 221216)
- Drop Qt6 from "win64" environment. If one can run Qt6 (requires win10), they can also use the preferred "win64-10" (requires win10) environment