Upgrade to SnakeYAML 1.30 release

By: md_5 <git@md-5.net>

paper-api/pom.xml

@@ -54,7 +54,7 @@
         <dependency>
             <groupId>org.yaml</groupId>
             <artifactId>snakeyaml</artifactId>
-            <version>1.28</version>
+            <version>1.30</version>
             <scope>compile</scope>
         </dependency>
         <!-- not part of the API proper -->