{CI} Fix #5408: Miss a __init__.py file in src/reservation/azext_reservation/vendored_sdks directory

[wangzelin007]

The pull request #5408 miss a __init__.py file in src/reservation/azext_reservation/vendored_sdks directory.
So the vendored_sdks directory will not include when buliding wheel package.
That will cause azure-cli pipeline error:

    invoker.commands_loader.load_arguments()
  File "/opt/hostedtoolcache/Python/3.10.7/x64/lib/python3.10/site-packages/azure/cli/core/__init__.py", line 502, in load_arguments
    cmd.load_arguments()  # this loads the arguments via reflection
  File "/opt/hostedtoolcache/Python/3.10.7/x64/lib/python3.10/site-packages/azure/cli/core/commands/__init__.py", line 318, in load_arguments
    super(AzCliCommand, self).load_arguments()
  File "/opt/hostedtoolcache/Python/3.10.7/x64/lib/python3.10/site-packages/knack/commands.py", line 104, in load_arguments
    cmd_args = self.arguments_loader()
  File "/opt/hostedtoolcache/Python/3.10.7/x64/lib/python3.10/site-packages/azure/cli/core/commands/command_operation.py", line 125, in arguments_loader
    op = self.get_op_handler(self.op_path)
  File "/opt/hostedtoolcache/Python/3.10.7/x64/lib/python3.10/site-packages/azure/cli/core/commands/command_operation.py", line 59, in get_op_handler
    handler = import_module(mod_to_import)
  File "/opt/hostedtoolcache/Python/3.10.7/x64/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 992, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 992, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 992, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1004, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'azext_reservation.vendored_sdks'

and azure-cli-extension pipeline error:

======================================================================
ERROR: test_ref_doc_reservation (__main__.IndexRefDocs)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/mnt/vss/_work/1/s/./scripts/ci/index_ref_doc.py", line 65, in test
    raise e
  File "/mnt/vss/_work/1/s/./scripts/ci/index_ref_doc.py", line 62, in test
    check_call(script_args)
  File "/opt/hostedtoolcache/Python/3.10.7/x64/lib/python3.10/subprocess.py", line 369, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['/opt/hostedtoolcache/Python/3.10.7/x64/bin/python', '/mnt/vss/_work/1/s/scripts/refdoc/generate.py', '--extension-file', '/tmp/tmp555o1sit/reservation-0.1.0-py3-none-any.whl', '--output-dir', '/tmp/tmpcw7mvox6/reservation']' returned non-zero exit status 1.

Test screenshot:
before change

after change

[jiasli]

Perhaps an empty __init__.py will work? Since this vendored_sdks doesn't need to be a namespace package.

[wangzelin007]

I copied this file from another extension just to be safe.
There is no problem with using an empty __init__.py file.

[yonzhan]

Really good catch!

[azclibot]

[Release] Update index.json for extension [ reservation ] : https://dev.azure.com/azclitools/internal/_build/results?buildId=7493&view=results