A long overdue release of SerialPlot. There are not much features or a fixes. Mainly I've updated the project to use Qt6. Created a github build action to automatically build binaries and upload them to Github releases. Hopefully we won't loose binaries this time.

Release notes on github: https://github.com/hyOzd/serialplot/releases/tag/v0.13.0

I haven't done any comprehensive testing. Please let me know the bugs and issues you encounter in the issue tracker https://github.com/hyOzd/serialplot/issues/