v3.0.2: Minor Spigot fix

This update fixes a small issue on Spigot servers where a NoClassDefFoundException is thrown whenever the MOTD gets parsed.

This was because I used a convenience method from ProtocolLib that converts a Adventure component to a WrappedChatComponent. This method only works on servers natively implementing adventure (i.e. Paper).
The reason why it worked on older versions is unknown to me. My biggest guess is, that I accidentally included the adventure library in my plugin, which ProtocolLib would hook into.

Either way, this should be fixed now. Thanks to SlimeDog for reporting.