BetterEnd

Fixes

• The mixin refmap is shipped again, so BetterEnd works with Sinytra Connector like 4.0.11 did (BCLib#249)
• BYG-only connected-texture entries now load only when BYG is installed (BetterEnd#471)
• Distant Horizons draws BetterEnd water in its LOD chunks in the biome colour again instead of white (BetterEnd#581)

Validation

• ✅ Dedicated server (Minecraft 1.20.1) started (BCLib 3.0.18, BetterNether 9.0.13, BetterEnd 4.0.14, wunderreich 6.0.7)
• ✅ BiomesOPlenty + Terralith (BiomesOPlenty-fabric-1.20.1-19.0.0.96.jar, Terralith_1.20.x_v2.5.4.jar, GlitchCore-fabric-1.20.1-0.0.1.1.jar, TerraBlender-fabric-1.20.1-3.0.1.11.jar, tested: gametest+worldgen)
• ✅ Incendium alone (Incendium_1.20.x_v5.3.5.jar, tested: gametest+worldgen)
• ✅ Nullscape alone (Nullscape_1.20.x_v1.2.8.jar, tested: gametest+worldgen)
• ✅ TechReborn alone (TechReborn-5.8.15.jar, tested: gametest+worldgen)
• ✅ Oh The Biomes We've Gone alone (Oh-The-Biomes-Weve-Gone-Fabric-1.8.2.jar, Oh-The-Trees-Youll-Grow-fabric-1.20.1-1.7.3.jar, Corgilib-Fabric-1.20.1-4.0.3.6.jar, geckolib-fabric-1.20.1-4.8.4.jar, TerraBlender-fabric-1.20.1-3.0.1.11.jar, tested: gametest+worldgen)
• ✅ Regions Unexplored alone (RegionsUnexploredFabric-0.5.6+1.20.1.jar, ForgeConfigAPIPort-v8.0.3-1.20.1-Fabric.jar, TerraBlender-fabric-1.20.1-3.0.1.11.jar, tested: gametest+worldgen)
• ✅ BOP + Terralith + Incendium + Nullscape + BYG + Regions Unexplored (BiomesOPlenty-fabric-1.20.1-19.0.0.96.jar, Terralith_1.20.x_v2.5.4.jar, GlitchCore-fabric-1.20.1-0.0.1.1.jar, TerraBlender-fabric-1.20.1-3.0.1.11.jar, Incendium_1.20.x_v5.3.5.jar, Nullscape_1.20.x_v1.2.8.jar, Oh-The-Biomes-Weve-Gone-Fabric-1.8.2.jar, Oh-The-Trees-Youll-Grow-fabric-1.20.1-1.7.3.jar, Corgilib-Fabric-1.20.1-4.0.3.6.jar, geckolib-fabric-1.20.1-4.8.4.jar, RegionsUnexploredFabric-0.5.6+1.20.1.jar, ForgeConfigAPIPort-v8.0.3-1.20.1-Fabric.jar, tested: gametest+worldgen)