Update dependency ModelContextProtocol to 2.1.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ModelContextProtocol (source)	2.0.0 → 2.1.0

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Release Notes

modelcontextprotocol/csharp-sdk (ModelContextProtocol)

v2.1.0

This release adds an opt-in subscriptions/listen handler for custom server-side notification streams, improves HTTP transport fallback reliability, and expands guidance and samples for telemetry and binary resources.

What's Changed

• Keep AutoDetect channel open after provisional SSE failure #​1768 by @​PranavSenthilnathan
• Preserve HTTP status codes across target frameworks #​1767 by @​PranavSenthilnathan
• Fall back to initialize when server/discover fails at the HTTP layer #​1766 by @​rbstp
• Add public subscriptions/listen server handler (SEP-2575) #​1775 by @​tarekgh

Documentation Updates

• Add README for the InMemoryTransport sample #​1769 by @​AkbarDizaji
• Add Application Insights telemetry example #​1778 by @​lntutor
• Clarify client handling of embedded binary tool resources #​1762 by @​luisangelrod

Test Improvements

• Speed up CLI argument escaping tests #​1773 by @​PranavSenthilnathan

Repository Infrastructure Updates

• Clarify AI disclosure format with a > [!NOTE] alert example #​1771 by @​PranavSenthilnathan (co-authored by @​Copilot)
• Bump the npm_and_yarn group across 1 directory with 6 updates #​1787
• Avoid reading Configuration in Directory.Build.props #​1776 by @​lntutor
• Bump danielpalme/ReportGenerator-GitHub-Action from 5.5.10 to 5.5.11 #​1784

Acknowledgements

• @​AkbarDizaji made their first contribution in #​1769
• @​luisangelrod made their first contribution in #​1762
• @​rbstp submitted issue #​1765 (resolved by #​1766)
• @​TomasHubelbauer submitted issue #​1026 (resolved by #​1778)
• @​Youssef1313 submitted issue #​995 (resolved by #​1766)
• @​eng-marani submitted issue #​1261 (resolved by #​1762)
• @​jeffhandley @​tarekgh @​halter73 @​PranavSenthilnathan reviewed pull requests

Full Changelog: modelcontextprotocol/csharp-sdk@v2.0.0...v2.1.0

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