[Feature]: migrate bundling measurements from `SizeAuditor` to `monosize`

[Hotell]

Library

v8 (@fluentui/react) and v0 (@fluentui/fluentui-northstar )

Describe the feature that you would like added

v8,v0 is using lightrail service + size-auditor bot (github app) which is "unmaintained" and it will reach end of life by 31st Jan 2024 ( unless we will inherit and maintain it - we dont wanna do that) .

We have implemented bundle-size (now monosize) tool (used for v9) which has several advantages in comparison with size-auditor + lightrail:

• can be run locally
• does not need to query the github api
• outputs the bundled code in prettified mode for analysis
• can create multiple fixtures for one component to test different import scenarios, size auditor only runs once on the whole package

We need migrate all v8 and v0 from bundle-size-auditor to monosize

Have you discussed this feature with our team

@microsoft/fluentui-react-build

Additional context

No response

Validations

• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

Tasks

• migrate to latest monosize / chore: bump monosize #30381
• migrate v8 chore(react): setup monosize for measuring bundle size which will replace size-auditor bot #30382
• migrate v0 chore(react-northstar): setup monosize for measuring bundle size which will replace-size auditor bot #30383
• delete bundle-size-auditor package and pipeline feat: remove bundle-size-auditor package including its usage and replace it with monosize on ci #30405
• remove SizeAuditor github app and lightrail service from pipelines chore: remove sizeauditor lightrail config #30425
• rename ADO pipeline from SizeAuditor to Fluent UI React - Bundle-Size
• remove Fluent UI React - Bundle-Size from branch restriction check (master, 7.0)
• add nx generator for bundle-size setup per project / feat(workspace-plugin): add bundle-size-configuration generator #30428
• remove SizeAuditor pipelines from 7.0 branch / ci(bundlesize): remove lightrail and azure storage uploads as they dont work anymore #30427