mesh 6.4 updates

[jeffj6123]

---

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

General Guidelines

• Have you run ./scripts/ci/test_static.sh locally? (pip install pylint flake8 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.

[azuresdkci]

If this PR is for a new extension or change to an existing extension, use the following to try out the changes in this PR:

docker run -it microsoft/azure-cli:latest
export EXT=<NAME>
pip install --upgrade --target ~/.azure/cliextensions/$EXT "git+https://github.com/jeffj6123/azure-cli-extensions.git@master#subdirectory=src/$EXT&egg=$EXT"

[williexu]

Please fix the CI, the metadata added must match the METADATA.json from your wheel.
Also, please rebase from master to update this PR

[jeffj6123]

How can I add a do not merge tag? I wanted to get the PR ready but it might be a few days before it should get merged in.

[williexu]

@jeffj6123 done :)

[jeffj6123]

#signoff