Bump BetterGUI from 5.1 to 5.4

Bumps BetterGUI from 5.1 to 5.4.

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -84,7 +84,7 @@
     <dependency>
       <groupId>me.HSGamer</groupId>
       <artifactId>BetterGUI</artifactId>
-      <version>5.1</version>
+      <version>5.4</version>
       <scope>provided</scope>
     </dependency>
   </dependencies>