Fix build

[literalplus]

Seems like ProtocolLib did something again with their Maven.

https://ci.lit.plus/job/public~cmdblkult/86/console

[ERROR] Failed to execute goal on project cbu-spigot: Could not resolve dependencies for project io.github.xxyy.cmdblocker:cbu-spigot:jar:1.5.6-SNAPSHOT: Failed to collect dependencies at com.comphenix.protocol:ProtocolLib:jar:4.3.0 -> com.comphenix.protocol:ProtocolLib-API:jar:${minorVersion}: Failed to read artifact descriptor for com.comphenix.protocol:ProtocolLib-API:jar:${minorVersion}: Could not transfer artifact com.comphenix.protocol:ProtocolLib-API:pom:${minorVersion} from/to mcstats-repo (https://repo.l1t.li/mcstats-wrapper/): Failed to transfer file: https://repo.l1t.li/mcstats-wrapper/com/comphenix/protocol/ProtocolLib-API/$%7BminorVersion%7D/ProtocolLib-API-$%7BminorVersion%7D.pom. Return code is: 400 , ReasonPhrase:Bad Request. -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :cbu-spigot