v0.8.4

Changed

• Bump brotli to 3.5
• Bump ctrlc to 3.4.4
• Bump dowser to 0.9
• Bump fyi_msg to 0.13
• Bump libdeflater to 1.19.3
• Bump rayon to 1.9
• Improve code coverage

Note: The attached .deb package requires an x86-64-v3-capable CPU. You can use this script from the XanMod Kernel project to verify your system's support level if you're unsure.