fix(worker versioning): fixed missing note character

Author: flippedcoder

docs/production-deployment/worker-deployments/worker-versioning.mdx

@@ -516,7 +516,7 @@ When you change the behavior to Auto-Upgrade, the Workflow will resume work on t
 Workflow's Target Version is different from the earlier Pinned Version, you should make sure you
 [patch](/patching#patching) the Workflow code.
 
-
+:::
 
 ## Sunsetting an old Deployment Version