chore: [MVUX] Enforce code analysis rules

[dr1rrb]

Based on #2080 which needs to be merged first

Other

Make MVUX compliant with CA2007 and CA2016

What is the current behavior?

• CA2007: Possible irrelevant thread swicthing
• CA2016: Might forget CT propagation

What is the new behavior?

🙃

PR Checklist

Please check if your PR fulfills the following requirements:

• Tested code with current supported SDKs
• Docs have been added/updated which fit documentation template. (for bug fixes / features)
• Unit Tests and/or UI Tests for the changes have been added (for bug fixes / features) (if applicable)
• Wasm UI Tests are not showing unexpected any differences. Validate PR Screenshots Compare Test Run results.
• Contains NO breaking changes
• Updated the Release Notes
• Associated with an issue (GitHub or internal)

[dr1rrb]

/azp run

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