[spring] use azure-mgmt-applicatoinsights as vendored SDK (do not merge)

[msyyc]

• add vendored code for applicationinsights which is copied from https://github.com/Azure/azure-sdk-for-python/tree/f005f46d7f55e1d319c89a337b8ecab1d7ce7882/sdk/applicationinsights/azure-mgmt-applicationinsights/azure/mgmt/applicationinsights directly
• update import to vendored code

[azure-client-tools-bot-prd]

Validation for Breaking Change Starting...

Thanks for your contribution!

[azure-client-tools-bot-prd]

Hi @msyyc,
Please write the description of changes which can be perceived by customers into HISTORY.rst.
If you want to release a new extension version, please update the version in setup.py as well.

[yonzhan]

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

[github-actions]

The git hooks are available for azure-cli and azure-cli-extensions repos. They could help you run required checks before creating the PR.

Please sync the latest code with latest dev branch (for azure-cli) or main branch (for azure-cli-extensions).
After that please run the following commands to enable git hooks:

pip install azdev --upgrade
azdev setup -c <your azure-cli repo path> -r <your azure-cli-extensions repo path>

[github-actions]

CodeGen Tools Feedback Collection

Thank you for using our CodeGen tool. We value your feedback, and we would like to know how we can improve our product. Please take a few minutes to fill our codegen survey

[github-actions]

Hi @msyyc

Release Suggestions

Module: spring

• Please log updates into to src/spring/HISTORY.rst
• Update VERSION to 1.28.2 in src/spring/setup.py

Notes

• For more info about extension versioning, please refer to Extension version schema