Update dependency Microsoft.AspNetCore.SignalR.Client to 8.0.21 - autoclosed

[dependencyupdates]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
Microsoft.AspNetCore.SignalR.Client (source)	8.0.17 -> 8.0.21

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Release Notes

dotnet/aspnetcore (Microsoft.AspNetCore.SignalR.Client)

v8.0.21: .NET 8.0.21

Release

What's Changed

• Update branding to 8.0.21 by @​vseanreesermsft in #​63509
• [release/8.0] (deps): Bump src/submodules/googletest from 373af2e to eb2d85e by @​dependabot[bot] in #​63500
• [release/8.0] Make duplicate deb/rpm packages so we can sign them with the new PMC key by @​github-actions[bot] in #​63250
• [release/8.0] Extend Unofficial 1ES template in IdentityModel nightly tests job by @​github-actions[bot] in #​63466
• [release/8.0] Quarantine ResponseBody_WriteContentLength_PassedThrough by @​github-actions[bot] in #​63534
• [release/8.0] Update dependencies from dotnet/source-build-reference-packages by @​dotnet-maestro[bot] in #​63261
• [release/8.0] Use wait assert in flaky tests by @​ilonatommy in #​63565
• [release/8.0] Update Microsoft.Build versions by @​github-actions[bot] in #​62507
• Merging internal commits for release/8.0 by @​vseanreesermsft in #​63603
• backport(8.0): Fix runtime architecture detection logic in ANCM by @​DeagleGross in #​63706

Full Changelog: dotnet/aspnetcore@v8.0.20...v8.0.21

v8.0.20: .NET 8.0.20

Release

What's Changed

• Update branding to 8.0.20 by @​vseanreesermsft in #​63106
• [release/8.0] (deps): Bump src/submodules/googletest from c67de11 to 373af2e by @​dependabot[bot] in #​63038
• [release/8.0] Dispose the certificate chain elements with the chain by @​MackinnonBuck in #​62994
• [release/8.0] Update SignalR Redis tests to use internal Docker Hub mirror by @​github-actions[bot] in #​63117
• [release/8.0] [SignalR] Don't throw for message headers in Java client by @​github-actions[bot] in #​62784
• Merging internal commits for release/8.0 by @​vseanreesermsft in #​63152
• [release/8.0] Update dependencies from dotnet/extensions by @​dotnet-maestro[bot] in #​63188
• [release/8.0] Update dependencies from dotnet/arcade by @​dotnet-maestro[bot] in #​63189

Full Changelog: dotnet/aspnetcore@v8.0.19...v8.0.20

v8.0.18: .NET 8.0.18

Release

What's Changed

• Update branding to 8.0.18 by @​vseanreesermsft in #​62241
• [release/8.0] Update Alpine helix references by @​github-actions in #​62243
• [release/8.0] (deps): Bump src/submodules/googletest from 04ee1b4 to e9092b1 by @​dependabot in #​62201
• [8.0] Delete src/arcade directory by @​akoeplinger in #​61994
• [Backport 8.0] [IIS] Manually parse exe bitness (#​61894) by @​BrennanConroy in #​62037
• [release/8.0] Update dependencies from dotnet/source-build-reference-packages by @​dotnet-maestro in #​62006
• [release/8.0] Update dependencies from dotnet/arcade by @​dotnet-maestro in #​61944
• [release/8.0] Associate tagged keys with entries so replacements are not evicted by @​github-actions in #​62247
• [release/8.0] Block test that is failing after switching to latest-chrome by @​github-actions in #​62284
• backport(net8.0): http.sys on-demand TLS client hello retrieval by @​DeagleGross in #​62290
• Merging internal commits for release/8.0 by @​vseanreesermsft in #​62302

Full Changelog: dotnet/aspnetcore@v8.0.17...v8.0.18

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