Merge pull request dotnet#8212 from dotnet/v3-9019f386b

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Merge pull request dotnet#8201 from dotnet/v3-rel-upgrade-validation

upgrade validation library to include new domains (dotnet#8199)

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* fix: return LinkType.External if host name is not removed (dotnet#8182)

* Update default document url in language server (dotnet#8183)

Co-authored-by: Ying Hua <[email protected]>

Merge pull request dotnet#8180 from dotnet/v3

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Release 2.59.4 (dotnet#8169)

* Release 2.59.4

* Release 2.59.4

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Merge pull request dotnet#8153 from dotnet/v3

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Merge pull request dotnet#8121 from dotnet/v3

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