Update logging dependency

Author: games647

core/pom.xml

@@ -82,7 +82,7 @@
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-jdk14</artifactId>
-            <version>2.0.0-alpha5</version>
+            <version>2.0.0-alpha6</version>
         </dependency>
 
         <!-- snakeyaml is present in Bungee, Spigot, Cauldron, so we could use this independent implementation -->