mcp: update JSON-RPC error codes to align with updated MCP specification#1016
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nahapetyan-serob
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Jun 22, 2026
guglielmo-san
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This PR updates the error codes to align with the updated specifications in modelcontextprotocol/modelcontextprotocol#2907
ErrServerClosing and ErrClientClosing are reverted to their 1.6.0 version codes, as they do not overlap anymore with the newly introduced error codes.