License field causes issues on license checker tools

[flovogt]

Inspector Version
0.20.0

Describe the bug
With 0.20.0 the license property was changed which causes issues on tools checking this field. See https://github.com/UI5/mcp-server/actions/runs/22107458222/job/63894163529?pr=227

Expected behavior
The license field is properly maintained.

Current behavior

> licensee --errors-only

@modelcontextprotocol/inspector@0.20.0
  NOT APPROVED
  Terms: Invalid SPDX expression "SEE LICENSE IN LICENSE"
  Repository: None listed
  Homepage: https://modelcontextprotocol.io/
  Author: Model Context Protocol a Series of LF Projects, LLC.
  Contributors: None listed

@modelcontextprotocol/inspector-cli@0.20.0
  NOT APPROVED
  Terms: Invalid SPDX expression "SEE LICENSE IN LICENSE"
  Repository: None listed
  Homepage: https://modelcontextprotocol.io/
  Author: Model Context Protocol a Series of LF Projects, LLC.
  Contributors: None listed

@modelcontextprotocol/inspector-client@0.20.0
  NOT APPROVED
  Terms: Invalid SPDX expression "SEE LICENSE IN LICENSE"
  Repository: None listed
  Homepage: https://modelcontextprotocol.io/
  Author: Model Context Protocol a Series of LF Projects, LLC.
  Contributors: None listed

@modelcontextprotocol/inspector-server@0.20.0
  NOT APPROVED
  Terms: Invalid SPDX expression "SEE LICENSE IN LICENSE"
  Repository: None listed
  Homepage: https://modelcontextprotocol.io/
  Author: Model Context Protocol a Series of LF Projects, LLC.
  Contributors: None listed