Update dependency com.gmail.nossr50.mcMMO:mcMMO to v2.2.020

Author: renovate[bot]

pom.xml

@@ -211,7 +211,7 @@
         <dependency>
             <groupId>com.gmail.nossr50.mcMMO</groupId>
             <artifactId>mcMMO</artifactId>
-            <version>2.2.017</version>
+            <version>2.2.020</version>
             <scope>provided</scope>
         </dependency>
     </dependencies>