fix(deps): update dependency com.velocitypowered:velocity-api to v3.4.0

Author: renovate[bot]

gradle/libs.versions.toml

@@ -3,7 +3,7 @@ metadata.format.version = "1.1"
 [versions]
 
 adventure = "4.26.1"
-velocity = "3.3.0-SNAPSHOT"
+velocity = "3.4.0"
 futures = "0.3.5"
 
 configurate = "4.2.0"