Update eos clcionf plugin (#43809)

* If the remote host supports session
  capability set the `supports_generate_diff`
  flag to false which identifies if config diff should
  be generated within module or not

lib/ansible/plugins/cliconf/eos.py

@@ -275,7 +275,7 @@ class Cliconf(CliconfBase):
             'supports_multiline_delimiter': False,
             'supports_diff_match': True,
             'supports_diff_ignore_lines': True,
-            'supports_generate_diff': True,
+            'supports_generate_diff': False if self.supports_sessions else True,
             'supports_replace': True if self.supports_sessions else False
         }