Add qt6 ci support

4 jobs for master in 4 minutes and 55 seconds (queued for 2 seconds)
Name Stage Failure
failed
suse_tumbleweed_qt62 Build
  File "/builds/pim/kpimtextedit/ci-utilities/components/Package.py", line 199, in retrieveDependencies
raise Exception("Unable to locate requested dependency in the registry: {} (branch: {})".format( identifier, branch ))
Exception: Unable to locate requested dependency in the registry: kdesignerplugin (branch: master)
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