Add suggested Appears/Safe change from peer review

Co-authored-by: jheysel-r7 <[email protected]>

Author: remmons-r7

modules/exploits/multi/http/atlassian_confluence_rce_cve_2024_21683.rb

@@ -85,6 +85,8 @@ def check
        # According to Atlassian, all versions < 7.17 are vulnerable.
        version.between?(Rex::Version.new('0.0.0'), Rex::Version.new('7.16.999'))
       Exploit::CheckCode::Appears("Exploitable version of Confluence: #{version}")
+    else
+      Exploit::CheckCode::Safe("Non-exploitable version of Confluence: #{version}")
     end
   end