mcp-toolbox: checksum update

[stefanb]

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---

Build failed with:

  Error: mcp-toolbox: SHA-256 mismatch
  Expected: 868791740dcecf39204c2c106a257dc3ce2c7626fb34c1313841bc4aab9d7e56
    Actual: 14651535a698702b0dbd546198f3a1ba093f4ee8983af17cba346fe5881286a6
      File: /Users/brew/Library/Caches/Homebrew/downloads/d8b91973d7d9aee242dfdf50a7a0d453b792bc4d7394e351d2cb826bb32dc8a1--genai-toolbox-0.11.0.tar.gz

Apparently upstream source hash has changed since

• mcp-toolbox 0.11.0 #232376

Found in

• go 1.25.0, go@1.24 1.24.6 (new formula) #226636

[daeho-ro]

• Checksum has changed for v0.11.0 tarball googleapis/genai-toolbox#1144

[github-actions]

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