v3.0.0: Proper 1.19.4 release

This release is the first proper 3.0.0 release of AdvancedServerList.

If you didn't follow the previous releases is here a short summary:

• Support for PaperMC's new Paper-plugin system has been implemented. The two jars (Spigot and Paper) have been merged into one now. As of writing this has the Paper module - after being kept for a while - been removed.
• Fixes have been made towards Spigot compatability (More precisely with protocollib).

Other changes have recently been made too. In detail, a "HangarUploader" module was made, which houses the code of a Jar file made to upload the jar files to the Hangar Website automatically.
Big thanks to all the @HangarMC team members that helped me in getting this to work. If you're reading this on Hangar, does it mean the application worked!

Additionally have dependencies been improved. The Bukkit jar is no longer almost 8MB but instead around 1.15MB. The other jars - to my knowledge - received little to no size reduction.

Funfact (Actually sad fact)

This is the 7th time I make the release