Fix slave container used for 202411 branch (#504)

Use the master branch tag instead of the bookworm branch tag to get the slave container.

Signed-off-by: Saikrishna Arcot <[email protected]>

Author: saiarcot895

.azure-pipelines/build-template.yml

@@ -42,7 +42,7 @@ jobs:
   timeoutInMinutes: ${{ parameters.timeout }}
 
   container:
-    image: sonicdev-microsoft.azurecr.io:443/${{ parameters.sonic_slave }}:bookworm
+    image: sonicdev-microsoft.azurecr.io:443/${{ parameters.sonic_slave }}:202411
 
   steps:
   - checkout: self