includesModifiedFile in Action policy test - 2 files diff paths

[gewarren]

Summary

Describe your changes here.

Fixes #Issue_Number (if available)

[dotnet-policy-service[bot]]

Tagging subscribers to this area: @dotnet/area-extensions-caching

[learn-build-service-prod[bot]]

Learn Build status updates of commit ea8902f:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
xml/Microsoft.Extensions.Caching.SqlServer/SqlServerCache.xml	:white_check_mark:Succeeded	View
xml/System.Formats.Nrbf/NrbfDecoder.xml	:white_check_mark:Succeeded	View

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