update readme and changelog

CHANGELOG.md

@@ -8,7 +8,8 @@ FEATURES:
 ENHANCEMENTS:
 
 BUG FIXES:
-
+* Update Guacomole Linux VM Images to 22.04 and 20.04 Data Science VM. Part of ([#3523](https://github.com/microsoft/AzureTRE/issues/3523))
+  
 COMPONENTS:
 
 ## 0.17.0

templates/workspace_services/guacamole/user_resources/README.md

@@ -32,7 +32,7 @@ custom:
       source_image_reference:
         publisher: canonical
         offer: 0001-com-ubuntu-server-jammy
-        sku: 22_04-lts
+        sku: 22_04-lts-gen2
         version: latest
       install_ui: true
       conda_config: false
@@ -40,7 +40,7 @@ custom:
       source_image_reference:
         publisher: canonical
         offer: 0001-com-ubuntu-server-focal
-        sku: 20_04-lts
+        sku: 20_04-lts-gen2
         version: latest
       install_ui: true
       conda_config: false
@@ -48,7 +48,7 @@ custom:
       source_image_reference:
         publisher: microsoft-dsvm
         offer: ubuntu-2004
-        sku: 2004
+        sku: 2004-gen2
         version: latest
       install_ui: true
       conda_config: true