[stable-2.9] Fix 'CyberarkPassword' object has no attribute 'delimiter' (#66268)

This is a very small follow up to PR #59500
(cherry picked from commit 53e405dd42)

Co-authored-by: Marc Hörsken <mback2k@users.noreply.github.com>

changelogs/fragments/66268-cyberarkpassword-fix-invalid-attr.yaml

@@ -0,0 +1,2 @@
+bugfixes:
+  - cyberarkpassword - fix invalid attribute access (https://github.com/ansible/ansible/issues/66268)

lib/ansible/plugins/lookup/cyberarkpassword.py

@@ -121,7 +121,7 @@ class CyberarkPassword:
                 '-p', 'AppDescs.AppID=%s' % self.appid,
                 '-p', 'Query=%s' % self.query,
                 '-o', self.output,
-                '-d', self.delimiter]
+                '-d', self.b_delimiter]
             all_parms.extend(self.extra_parms)
 
             b_credential = b""