docs: add beta tag to lifecycle stanza (#7496)

website/pages/docs/job-specification/lifecycle.mdx

@@ -1,11 +1,11 @@
 ---
 layout: docs
 page_title: lifecycle Stanza - Job Specification
-sidebar_title: lifecycle
+sidebar_title: lifecycle <sup>0.11 Beta</sup>
 description: The "lifecycle" stanza configures when a task is run within the lifecycle of a task group
 ---
 
-# `lifecycle` Stanza
+# `lifecycle` Stanza <sup>0.11 Beta</sup>
 
 <Placement groups={['job', 'group', 'task', 'lifecycle']} />
 

website/pages/docs/job-specification/task.mdx

@@ -67,7 +67,7 @@ job "docs" {
   the task group. If set to true, when the leader task completes, all other
   tasks within the task group will be gracefully shutdown.
 
-- `lifecycle` <code>([Lifecycle][]: nil)</code> - Specifies when a task is run
+- `lifecycle` <sup>0.11 Beta</sup> <code>([Lifecycle][]: nil)</code> - Specifies when a task is run
   within the lifecycle of a task group.
 
 - `logs` <code>([Logs][]: nil)</code> - Specifies logging configuration for the