chore: release v3.0.0

[github-actions]

🤖 New release

• rmcp-macros: 2.2.0 -> 3.0.0
• rmcp: 2.2.0 -> 3.0.0

Changelog

rmcp-macros

3.0.0 - 2026-07-10

Added

• [breaking] implement SEP-2549 cache hints (#889)
• [breaking] add MRTR behavior support (SEP-2322) (#929)
• relax outputSchema to accept non-object JSON Schema types (SEP-2106) (#895)
• [breaking] add MRTR model types (SEP-2322) (#915)

rmcp

3.0.0 - 2026-07-10

Added

• [breaking] implement SEP-2549 cache hints (#889)
• [breaking] add MRTR behavior support (SEP-2322) (#929)
• [breaking] type Annotations.lastModified as a string (#956)
• [breaking] add SEP-2243 HTTP standard headers (#907)
• relax outputSchema to accept non-object JSON Schema types (SEP-2106) (#895)
• [breaking] relax tool result structuredContent type (SEP-2106) (#933)
• [breaking] add MRTR model types (SEP-2322) (#915)

Fixed

• specify compatible sse-stream version (#968)
• flag schema derive on schemars feature (#966)

---

This PR was generated with release-plz.