fix multiple issues with dry_run logic (#561)

fix multiple issues with dry_run logic

SUMMARY

Fix multiple issues with dry_run logic

The parameter value passed to the client set to dry_run=All instead of dry_run=True.
Add conditional check for Kubernetes release for the dry_run to be set
Add integration test that checks to ensure server side dry run is being used during check mode.


ISSUE TYPE


Bugfix Pull Request

Reviewed-by: Mike Graves <mgraves@redhat.com>
Reviewed-by: Jill R <None>

plugins/module_utils/k8s/core.py

@@ -47,6 +47,10 @@ class AnsibleK8SModule:
     def check_mode(self):
         return self._module.check_mode
 
+    @property
+    def server_side_dry_run(self):
+        return self.check_mode and self.has_at_least("kubernetes", "18.20.0")
+
     @property
     def _diff(self):
         return self._module._diff