chore(main): release adk 0.2.2

[release-please]

🤖 I have created a release beep boop

0.2.2 (2026-02-18)

Features

• Enable package-specific client identification for MCP (#238) (43b759e)

Miscellaneous Chores

• Deprecate native Toolbox protocol (#256) (77e8527)
• deps: bump axios from 1.13.2 to 1.13.5 (#266) (d10e520)
• deps: update dependency @google/adk to ^0.3.0 (#234) (f294e59)
• deps: update dependency @modelcontextprotocol/sdk to v1.26.0 [security] (#258) (c3f1aeb)
• deps: update mcp toolbox server for integration tests to 0.27.0 (#267) (d5eba0f)

Dependencies

• The following workspace dependencies were updated
  • dependencies
    • @toolbox-sdk/core bumped from ^0.2.1 to ^0.2.2

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