docs(nx-dev): correct sandbox mode availability to 22.6 (#35378)

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Fixes #

Author: juristr

astro-docs/src/content/docs/features/CI Features/sandboxing.mdoc

@@ -22,8 +22,8 @@ Sandboxing is available on the [Nx Enterprise plan](https://nx.dev/enterprise).
 [Reach out to learn more](https://nx.dev/enterprise).
 {% /aside %}
 
-{% aside type="caution" title="Nx 22.5+ Required" %}
-Task sandboxing requires Nx 22.5 or later.
+{% aside type="caution" title="Nx 22.6+ Required" %}
+Task sandboxing requires Nx 22.6 or later.
 {% /aside %}
 
 ## Why hermeticity matters