azure-pipelines.yml: Fixed Release job to checkout the source so it can be included in the release distribution
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 5779f83..95d2249 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -419,7 +419,10 @@
       vmImage: 'windows-2019'
 
     steps:
-    - checkout: none # self represents the repo where the initial Pipelines YAML file was found
+    # We checkout here because we need to publish the source code along with the binaries per Apache's releae policy
+    - checkout: self # self represents the repo where the initial Pipelines YAML file was found
+      fetchDepth: 1  # the depth of commits to ask Git to fetch
+
     - template: 'build/azure-templates/show-all-environment-variables.yml'