Upscayl v2.9.0 🥳

[!NOTE] PRE-RELEASE ONLY FOR OUR LINUX GANG 🐧❤️ Please report bugs if you notice any 🙏

What's Changed 🤓

• We're launching Upscayl on the Mac App Store soon 🥳
• NCNN update! Vulkan SDK and a lot of libraries have been updated, expect bug fixes and performance improvements💯
• Fix #499 - Remove redundant upscaled files 🗑️
• Fix #488 - Batch Upscale empty progress bug 🪹
• Security updates 👮‍♀️
• Skip conversion for 4x PNG upscaling ⏭️

Full Changelog: https://github.com/upscayl/upscayl/compare/v2.8.6...v2.9.0