Merge pull request #235170 from mattmcinnes/patch-66

[Doc-a-thon] Updating ubuntu-upgrade.md

Author: prmerger-automator[bot]

articles/machine-learning/data-science-virtual-machine/ubuntu-upgrade.md

@@ -8,7 +8,8 @@ ms.service: data-science-vm
 author: jesscioffi
 ms.author: jcioffi
 ms.topic: conceptual
-ms.date: 10/04/2022
+ms.reviewer: mattmcinnes
+ms.date: 04/19/2023
 ---
 
 # Upgrade your Data Science Virtual Machine to Ubuntu 20.04