Undocumented restrictions on allowed filenames in the 'path' argument

### Type of issue

Missing information

### Description

The documentation does not mention the use of 'Sensitive' exclusion filters which _may_ lead to _unsuspected_ errors.

See: https://stackoverflow.com/questions/79375071/iconfigurationbuilder-build-fails-with-files-starting-with-a-dot

### Page URL

https://learn.microsoft.com/en-us/dotnet/api/microsoft.extensions.configuration.iniconfigurationextensions.addinifile?view=net-9.0-pp

### Content source URL

https://github.com/dotnet/dotnet-api-docs/blob/main/xml/Microsoft.Extensions.Configuration/IniConfigurationExtensions.xml

### Document Version Independent Id

c3bb26f8-1dff-5422-402b-47126d0f4675

### Article author

@dotnet-bot