Update to latest Qt patch version and install-qt-action v4 in Qt6 Action

[matterhorn103]

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[matterhorn103]

Qt 6.8.0 -> 6.8.1, which has a lot of fixes.

Also bumped the version of the install-qt-action to v4. Amongst other things there are relevant fixes for Qt 6.8 on Windows, and Windows on ARM support should we later want it.

There is an upgrade guide for install-qt-action here; I don't think any of it should be an issue.

The default settings in v4 and with Qt 6.8 align with the Windows-specific settings we had before so I dropped the separate step for Windows as it's now superfluous.

If everything looks good and merging is approved I'll update the avogadroapp action to match.

[matterhorn103]

@ghutchis I don't know anything about building on Mac – should we also be thinking about updating MACOS_TARGET and therefore indirectly MACOSX_DEPLOYMENT_TARGET from 10.15 to 12 (or higher I guess)? Qt 6.8 is officially supported on macOS 12 or higher.

[github-actions]

Here are the build results
Avogadro2.AppImage
Ubuntu-Latest.tar.gz
macOS.dmg
Win64.exe
Artifacts will only be retained for 90 days.

[ghutchis]

In priniciple dependabot should have found the install-qt-action update. No matter - the update is useful.

I agree with the update of MACOSX_DEPLOYMENT_TARGET. I doubt there are too many people still on 10.15, so 12 seems a reasonable target for the next release.

[github-actions]

Here are the build results
Avogadro2.AppImage
Ubuntu-Latest.tar.gz
macOS.dmg
Win64.exe
Artifacts will only be retained for 90 days.

[ghutchis]

LGTM. I don't know what's going on with CodeQL, but that's not related.

[github-actions]

Here are the build results
Avogadro2.AppImage
Ubuntu-Latest.tar.gz
macOS.dmg
Win64.exe
Artifacts will only be retained for 90 days.

[avo-bot]

This pull request has been mentioned on Avogadro Discussion. There might be relevant details there:

https://discuss.avogadro.cc/t/december-2024-live-updates/6609/1