Add Qt6 CI

5 jobs for !14 with work/qt6 in 5 minutes and 28 seconds (queued for 7 seconds)
merge request
Name Stage Failure
suse_tumbleweed_qt62 Build
make[1]: *** [CMakeFiles/Makefile2:799: src/private/CMakeFiles/KF5KDEGamesPrivate.dir/all] Error 2
make: *** [Makefile:146: all] Error 2
## Failed to build the project
Uploading artifacts for failed job
Uploading artifacts...
WARNING: JUnitTestResults.xml: no matching files
ERROR: No files to upload
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1