Convert legacy Packer json template to hcl2 template (#247)

* convert legacy Packer json template to hcl2 template

.github/workflows/e2e.yaml

@@ -23,6 +23,7 @@ jobs:
           separator: ","
           files: "quickstart/*"
           files_ignore: "**/TestRecord.md"
+          dir_names_max_depth: 2
       - name: test pr
         run: |
           az login --identity --username $MSI_ID > /dev/null

.github/workflows/pr-check.yaml

@@ -20,6 +20,7 @@ jobs:
           dir_names: "true"
           separator: ","
           files: "quickstart/*"
+          dir_names_max_depth: 2
       - name: pr-check
         run: |
           export CHANGED_FOLDERS="${{ steps.changed-files.outputs.all_changed_files }}"