update mount secret volume test

[smzeng]

---

This checklist is used to make sure that common guidelines for a pull request are followed.

We used to return a payload of each individual secret mounted when mounting all secrets. However, we recently changed the behavior to return no secret if all secrets are mounted as secrets can change in the future if user adds/removes secrets.

fixing CLI test to reflect this change.

Related command

az containerapp create --secret-volume-mount

General Guidelines

• Have you run azdev style <YOUR_EXT> locally? (pip install azdev required)
• Have you run python scripts/ci/test_index.py -q locally?

For new extensions:

• My extension description/summary conforms to the Extension Summary Guidelines.

About Extension Publish

There is a pipeline to automatically build, upload and publish extension wheels.
Once your pull request is merged into main branch, a new pull request will be created to update src/index.json automatically.
You only need to update the version information in file setup.py and historical information in file HISTORY.rst in your PR but do not modify src/index.json.

[azure-client-tools-bot-prd]

Hi @smzeng,
Since the current milestone time is less than 7 days, this pr will be reviewed in the next milestone.

[azure-client-tools-bot-prd]

Hi @smzeng,
If you want to release the new extension version.
Please write the description of changes into HISTORY.rst and update setup.py.

[yonzhan]

Thank you for your contribution! We will review the pull request and get back to you soon.

[smzeng]

@zhoxing-ms I was wondering if I could have some help figuring out why the Verify Docs step is failing? The error message isn't really clear to me.

`
ERROR: test_ref_doc_confcom (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/3.10.11/x64/lib/python3.10/subprocess.py", line 369, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['/opt/hostedtoolcache/Python/3.10.11/x64/bin/python', '/mnt/vss/_work/1/s/scripts/refdoc/generate.py', '--extension-file', '/tmp/tmp2bweov7a/confcom-0.2.14-py3-none-any.whl', '--output-dir', '/tmp/tmpxfnfucva/confcom']' returned non-zero exit status 1.

---

`

[zhoxing-ms]

@smzeng Known issue, we already have a PR to fix it #6317