chor: Add Hydr4 as contributor

Took 4 minutes

Author: DerFrZocker

pom.xml

@@ -28,7 +28,7 @@
         <maven.compiler.target>1.8</maven.compiler.target>
         <maven.build.timestamp.format>yyyy.MM.d</maven.build.timestamp.format>
         <project.author>DerFrZocker</project.author>
-        <project.authors>Nononitas</project.authors>
+        <project.authors>Nononitas, Hydr4</project.authors>
         <version.maven-install-plugin>2.5.2</version.maven-install-plugin>
         <version.non-maven1>1.0.0</version.non-maven1>
         <spigot-utils.version>cog-15</spigot-utils.version>