Revert SnakeYAML upgrade

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

paper-api/pom.xml

@@ -30,20 +30,6 @@
         </snapshotRepository>
     </distributionManagement>
 
-    <repositories>
-        <repository>
-            <id>sonatype-nexus-snapshots</id>
-            <name>Sonatype Nexus Snapshots</name>
-            <url>https://oss.sonatype.org/content/repositories/snapshots/</url>
-            <releases>
-                <enabled>false</enabled>
-            </releases>
-            <snapshots>
-                <enabled>true</enabled>
-            </snapshots>
-        </repository>
-    </repositories>
-
     <dependencies>
         <dependency>
             <groupId>commons-lang</groupId>
@@ -68,7 +54,7 @@
         <dependency>
             <groupId>org.yaml</groupId>
             <artifactId>snakeyaml</artifactId>
-            <version>1.30-SNAPSHOT</version>
+            <version>1.28</version>
             <scope>compile</scope>
         </dependency>
         <!-- not part of the API proper -->