[9.0] License Scan Failing in SBE

[ellahathaway]

Link to failing test

The newly detected license and path in SBE is:

  "path": "src/vs-solutionpersistence/stylecop.json",
  "detected_license_expression": "unknown"

This exclusion already exists in main, we should add it to 9.0 as well.

PR that added this exclusion in main