Fix T1003.006 Test #2 prereq_command: incorrect ExportedCommands key (#3297)

Co-authored-by: kali <kali@kali-hp.kali>
Co-authored-by: Bhavin Patel <bhavin.j.patel91@gmail.com>
Co-authored-by: Hare Sudhan <27735081+cyberbuff@users.noreply.github.com>

atomics/T1003.006/T1003.006.yaml

@@ -64,8 +64,7 @@ atomic_tests:
       DSInternals must be installed
     prereq_command: |
       $RequiredModule = Get-Module -Name DSInternals -ListAvailable
-      if (-not $RequiredModule) {exit 1}
-      if (-not $RequiredModule.ExportedCommands['DSInternals']) {exit 1} else {exit 0}
+      if (-not $RequiredModule) {exit 1} else {exit 0}
     get_prereq_command: |
       Install-Module -Name DSInternals -Scope CurrentUser -Force
   executor: