Improve: Upgrade to Sparkle 2

[rparet]

Brief overview of PR changes/additions

Move from Sparkle 1.25 to Sparkle 2.6.4 for Mac updates.

Motivation for adding to Mudlet

Stay current with 3rd party dependencies.

Other info (issues closed, discussion etc)

Fixes #6665

Moves sparkle directly into mudlet/mudlet and eliminates the third party dependency.

[add-deployment-links]

Hey there! Thanks for helping Mudlet improve. 🌟

Test versions

You can directly test the changes here:

• linux: https://make.mudlet.org/snapshots/7ba591/Mudlet-4.18.5-testing-pr7499-eda0f432-linux-x64.AppImage.tar
• osx: https://make.mudlet.org/snapshots/39d4e1/Mudlet-4.18.5-testing-pr7499-eda0f432-x86_64.dmg
• windows 64 bit: https://make.mudlet.org/snapshots/0995a8/Mudlet-4.18.5-testing-pr7499-eda0f432-windows-64.zip
• windows 32 bit: https://make.mudlet.org/snapshots/6c71ba/Mudlet-4.18.5-testing-pr7499-eda0f432-windows-32.zip

No need to install anything - just unzip and run.
Let us know if it works well, and if it doesn't, please give details.

[vadi2]

It seems entirely possible to cut out the 3rd party dependency

That would be nice, mixing-cocoa-and-qt is just there as it was a way I found this to work. macOS isn't my main development platform and that was just how I got this to work.

[rparet]

Updated this PR with a more direct approach. Removed mixing-cocoa-and-qt and added direct support for Sparkle as an updater.

Also, included DEV_SPARKLE as an environment flag to more easily test updater changes in development. Prior to this, it was more or less hardcoded to ptb/release.

[vadi2]

Looks solid! Let's give it a spin.

[vadi2]

Looks like the packaging step needs more polish, could you look? https://github.com/Mudlet/Mudlet/actions/runs/11596182977/job/32286624135?pr=7349#step:27:161 @rparet

[rparet]

on it. really odd that it built cleanly on the branch. I'll have an update shortly.

[rparet]

@vadi2 Mudlet/installers#119 - note that because this involves code signing, I couldn't really test this as thoroughly as I would normally like. Apologies in advance if this takes more than one pass.

[vadi2]

That's okay! Sometimes these things don't lend themselves well to local testing as you say.

[vadi2]

Looks like it worked great 👍