Add oracular to the build matrix

[adamlamar]

Ubuntu Noble comes with Qt 6.4. Oracular (24.10) comes with Qt 6.6. Creating this PR to test out the CI for oracular to see if we can get the additional Qt version coverage.

[kelson42]

@adamlamar Indeed having a CI also with cutting edge Qt would be helpful

[kelson42]

@adamlamar If you rebase and rerun, this should work now

[adamlamar]

@kelson42 There is a Qt bug that prevents compiling with -Werror on newer versions of g++ (13.3 is permissive of the <void> template constructor, 14.2 is not). The bug was part of many Qt releases and was fixed early this year.

Of the Ubuntus, Oracular has the newer g++ while the others don't. I added a small amount of handling for Qt6.6 that ignores the template-id-cdtor error. Since the warning template-id-cdtor is new in g++ 14.2, I can't simply apply the ignore flag on older Ubuntus because g++ complains of an unrecognized warning flag and exits.

I also submitted an Ubuntu bug to hopefully get it fixed in future package updates.

[kelson42]

LGTM, waiting feedback from @veloman-yunkan to merge. I have also subscribed myself to the two upstream tickets. Looks like the compilation issue with Qt6.6 is already fixed in Qt6.7.

[kelson42]

Finally mergin straight as @veloman-yunkan is pretty busy and the PR simple.

[adamlamar]

Sounds good, thank you for the merge. The compilation issue is fixed in Qt 6.6.3, but the ubuntu team just happened to package Qt 6.6.2 and did not yet pull in the fix through another path.