ProtocolLib 4.4.0 depends on a broken artifact (BukkitExecutors),
which is now part of ProtocolLib itself as of version 4.6.0.
See dmulloy2/ProtocolLib@7ac4ac6

AnvilGui needs to be shaded into the JAR.

MinecraftServer#setMotd was obfuscated in Spigot for 1.18, and
maintaining an NMS solution using VersionUtils seems like more trouble
than it's worth when we can just use PingListener to change the MOTD.

Replacing ocean biomes no longer works with the new terrain generation
system, so it's better to log a warning.

This also avoids a plugin crash in 1.18.2, for which there is no
BiomeMapping release yet (and it's unclear if there will ever be one).

The benefit of VersionAdapter over VersionUtils is that each adapter
implementation is built against its corresponding Paper/Spigot version,
meaning it's easier to catch errors and less reflection has to be used.

However, VersionUtils is tightly coupled with the rest of the codebase
which makes it hard to migrate some methods without substantial
refactoring. That'll be something to look at in the future.

This makes it easier to test the plugin on different server versions.

Previously it was applied to all projects, which is unnecessary and
slows the build down.

BiomeMapping is now shaded to avoid conflicts with other plugins.

The issue was that task the configuration avoidance API has to be used
explicitly in the Groovy DSL, see PaperMC/paperweight#143.