chore: bump CLI version to 0.5.1

Author: rlaope

argus-cli/src/main/java/io/argus/cli/ArgusCli.java

@@ -33,7 +33,7 @@
  */
 public final class ArgusCli {
 
-    private static final String VERSION = "0.5.0";
+    private static final String VERSION = "0.5.1";
     private static final String DEFAULT_HOST = "localhost";
     private static final int DEFAULT_PORT = 9202;