[main] Update dependencies from dotnet/xharness


 - Merge branch 'main' into darc-main-9bf802c9-e9a9-4ac3-9e26-8d067f87395f

… internal/external symbol servers (#15055)

- Remove multi-org client download and publishing.
- Upload to dnceng as single staging org.
- Use SymbolRequest to publish from stage org to public/internal servers.
- Add necessary PATs to autorotation mechanisms and scrub other tokens from logs.
- Add symbolgenerator with capability of raising DAC identity debug info level.

WinForms designer uploads several dlls with the same name under PDBArtifacts. The tool was not preserving full structure when copying prior to calling symbol.exe so only the last one got published. Copy all files to a temp location.

Co-authored-by: Jan Kotas <[email protected]>

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