7.3.19

• General cleanups across codebase
• Final release of the 7.3.x series in preparation for 7.4 release
• [Bukkit] Add a separate Gradle configuration for reobfuscation to better prepare for MC 26.1 support without dropping prior versions
• [Bukkit] Drop 1.21.3 adapters due to resource constraints
• [Bukkit] Tweaked logic to detect Mojang mappings to be more reliable with recent changes to non-mojmapped (Spigot) environments