docs: Fix typo (#26706)

docs/helm-chart/customizing-workers.rst

@@ -32,7 +32,7 @@ For example, to set resources on workers:
 
 See :ref:`workers parameters <parameters:workers>` for a complete list.
 
-One notable exception for ``KuberntesExecutor`` is that the default anti-affinity applied to ``CeleryExecutor`` workers to spread them across nodes
+One notable exception for ``KubernetesExecutor`` is that the default anti-affinity applied to ``CeleryExecutor`` workers to spread them across nodes
 is not applied to ``KubernetesExecutor`` workers, as there is no reason to spread out per-task workers.
 
 Custom ``pod_template_file``